Afleveringen
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Twenty-one episodes ago, we discussed the extinction of the dinosaurs 66 million years before the present. However, this isn't the only mass extinction event the Earth has witnessed. Let's go back to 252 million years ago and watch the Great Dying unfold...
Sources for this episode:
Campbell, N. A., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V. and Reece, J. B. (2018), Biology: a global approach, 11th edition (Global Edition), Harlow, Pearson Education Limited. Clennett, C., Locke, J. and Jackson, T. (editorial consultants) (2023), How Biology Works. LonondM Darling Kindersley Ltd. Cohen, K.M., Finney, S.C., Gibbard, P.L. & Fan, J.-X. (2013; updated) The ICS International Chronostratigraphic Chart. Episodes 36: 199-204. Cui, Y. and Kump, L. R. (2015), Global warming and the end-Permian extinction event: Proxy and modeling perspectives. Earth-Science Reviews 149: 5-22. Herron, J. C., and Freeman, S. (2015), Evolutionary Analysis. Harlow: Pearson Education Ltd. Hochuli, P. A., Hermann, E., Vigran, J. O., Bucher, H.and Weissert, H. (2010), Rapid demise and recovery of planet ecosystems across the end-Permian extinction event. Global and Planetary Change 74: 144-155. Kaiser, M. J., Attrill, M. J., Jennings, S., Thomas, D. N., Barnes, D. K. A., Brierley, A. S., Graham, N. A. J., Hiddink, J. G., Howell, K. and Kaartokallio, H. (2020), Marine Ecology: Processes, Systems and Impacts (3rd edition°; Oxford: Oxford University Press. Twitchett, R. J. (2007), The Lilliput effect in the aftermath of the end-Permian extinction event. Palaeogeography, Palaeoclimatology, Palaeoecology 252: 132-144. -
It's the fourth of seven episodes of Island Folk! Among subjects of discussion are reindeer on South Georgia, invasion and extinction on islands more broadly and a discussion of the Caribbean. Feel free to give the show a listen at the link below:
https://open.spotify.com/episode/3qaiLb44t4IPICE1iOoRzm?si=9358f712ea9e4d0c
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Zijn er afleveringen die ontbreken?
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Namesaking is the practice of naming a child for someone else- usually a close relative. Today, we will be exploring the psychology and impacts of this practice.
Sources for this episode:
Abel, E. L. (2013), Jr. Naming Etiquette. Names 61(4): 230-238. Bird, A. E. and McAndrew, F. T. (2019), Does Namesaking a Child Influence Attachment Style? North American Journal of Psychology 21(13): 39-44. Busse, T. V., Busse, K. and Busse, M. (1979), Identical First Names for Parent and Child. The Journal of Social Psychology 107(2): 293-294. Cameron, C. (1987), Trouble With Junior: Father-Naming, Child Abuse, and Deliquency. Sociology and Social Research 71(3): 200-204. McAndrew, F. T., King, J. C. and Honoroff, L. R. (2006), A Sociobiological Analysis of Namesaking Patterns in 322 American Families. Journal of Applied Social Psychology 32(4): 851-864. McAndrew, F. T. (2022), The namesaking of children as an investment strategy for managing kin relations and bonding fathers to their children. Evolutionary Behavioral Sciences 16(3): 220-228. Rossi, A. S. (1965), Naming Children in Middle-Class Families. American Sociological Review 30(4): 499-513. Šaffa, G., Štĕrbová, Z; and Prokop, P. (2021), Parental Investment is Biased toward Children Named for Their Fathers. Human Nature 32: 387-405. Author unknown, Wikipedia (date unknown), Eleanor Roosevelt (online) (Accessed 16/04/2024). Author unknown, Wikipedia (date unknown), Joe Biden (online) (Accessed 15/04/2024). Author unknown, Wikipedia (date unknown), Manila City Council (online) (Accessed 11/04/2024). -
The rewind mini series is back! This time, we're discuss the two forms of eukaryotic cell division, mitosis and meiosis.
Sources for this episode:
Campbell, N. A., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V. and Reece, J. B. (2018), Biology: a global approach, 11th edition (Global Edition), Harlow, Pearson Education Limited. Hine, R. (2019), A Dictionary of Biology (Oxford Quick Reference), 8th edition, Oxford, Oxford University Press. Russell, P. J. (2006), iGenetics: A Molecular Approach. San Francisco: Pearson Education, Inc. -
Following on from the definition of biomes in episode 78, we're zooming in and discussing habitats today. What we'll find is that the term is similar but smaller scale in terms of number of species considered- and that there used to be considerable uncertainty in the literature...
Sources for this episode:
Allaby, M. (editor) (2020), Oxford Dictionary of Zoology. Oxford: Oxford University Press. Carpenter, J. R. (1939), The Biome. The American Midland Naturalist 21(1): 75-91. Hall, L. S., Krausman, P. R. and Morrison, M. L. (1997), The Habitat Concept and a Plea for Standard Terminology. Wildlife Society Bulletin 25(1): 173-182. Hine, R. S. (2019), Oxford Dictionary of Biology (8th edition). Oxford: Oxford University Press. Thain, M. and Hickman, M. (2004), The Penguin Dictionary of Biology (11th edition). London: the Penguin Group. Yapp, R. H. (1922), The Concept of Habitat. Journal of Ecology 10(1): 1-17. Author unknown (1929), Prof. R. H. Yapp. Nature 123: 249-250. -
Returning to the idea of discussing biological thought in other cultures and/or times, today's topic is the Four Humours. This is an ancient idea of how the body worked coming from the thinkers of Ancient Greece and Rome.
Sources for this episode:
Jouanna, J. (2012), Greek Medicine from Hippocrates to Galen: Selected Papers. Leiden: BRILL. Stelmack, R. M. and Stalikas, A. (1991), Galen and the Humour Theory of Temperament. Personality and Individual Differences 12(3): 255-263. Thorndike, L. (1922), Galen: The Man and His Times. The Scientific Monthly 14(1): 83-93. -
There are two species of dormice in the UK. Today, we will be exploring the legislation around dormice, as well as the study which first pioneered the use of nest boxes for their study.
Sources for this episode:
Chanin, P. and Gubert, L. (2011), Surveying hazel dormice (Muscardinus avellinarius) with tubes and boxes: a comparison. Mammal Notes. Morris, P. A., Bright, P. W. and Woods, D. (1990), Use of Nestboxes by the Dormouse Muscardinus avellinarius. Biological Conservation 51: 1-13. Author unknown (2007), Dormouse: European Protected Species. Natural England Species Information Note SIN005. Author unknown, GOV.UK (date unknown), Hazel dormice: survey or research class licence (CL10a) (online) (Accessed c.02/04/2024). Author unknown, People's trust for endangered species (date unknown), Hazel dormouse disturbance licence (online) (Accessed c.02/04/2024). -
Today, two terms which, in a sense, extend our discussion of twins from episode 27.
Sources for this episode:
Blickstein, I. (2003), Superfecundation and superfetation: lessons from the past on early human development. The Journal of Maternal-Fetal & Neonatal Medicine 14(4): 217-219. Segal, N. L. and Nedelec, J. L. (2021), Heteropaternal twinning: Unique case of opposite-sex twins with different fathers. Forensic Science International 327: 110948. Thain, M. and Hickman, M. (2004), The Penguin Dictionary of Biology (11th edition). London: the Penguin Group. -
Skeletons are on the menu today- and the different kinds organisms can have.
Sources for this episode:
Campbell, N. A., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V. and Reece, J. B. (2018), Biology: a global approach, 11th edition (Global Edition), Harlow, Pearson Education Limited. Clennett, C., Locke, J. and Jackson, T. (editorial consultants) (2023), How Biology Works. LonondM Darling Kindersley Ltd. Hine, R. S. (2019), Oxford Dictionary of Biology (8th edition). Oxford: Oxford University Press. Schmidt-Nielsen, K. (1997), Animal Physiology: Adaptation and environment. Cambridge: Cambridge University Press. -
Bee declines feature prominently in the news today. But what are the causes for it? Using the example of the UK, we follow the Woodland Trust to explore this issue. Plus, we also discuss two papers which hold differing viewpoints about the pollination crisis generally...
Sources for this episode:
Briggs, H., BBC News (2019), Bees: Many British pollinating insects in decline, study shows (online) (Accessed 05/03/2024). Engel, M. S., Rasmussen, C. and Gonzalez, V. H. (2021), Bees. In: Starr, C. K. (ed.), Encyclopedia of Insects. Springer Nature Switzerland. Ghazoul, J. (2005), Buzziness as usual? Questioning the global pollination crisis. Trends in Ecology and Evolution 20(7): 367-373. Hine, R. S. (2019), Oxford Dictionary of Biology. Oxford: Oxford University Press. Kennedy, P. J., Ford, S. M., Poidatz, J., Thiéry, D., & Osborne, J. L. (2018). Searching for nests of the invasive Asian hornet (Vespa velutina) using radio-telemetry. Communications Biology, 1, 88. Lima, C. G., Sofia Vaz, A., Honrado, J. P., Aranha, J., Crespo, N., & Vicente, J. R. (2022). The invasion by the Yellow-legged hornet: A systematic review. Journal for Nature Conservation, 67, 126173. Paxton, R. J. (2010), Does infection by Nosema ceranae cause “Colony Collapse Disorder” in honey bees (Apis mellifera)? Journal of Apicultural Research 49(1): 80-84. Rader, R., Bartomeus, I., Garibaldi, L. A. and Woyciechowski, M. (2015), Non-bee insects are important contributors to global crop pollination. Proceedings of the National Academy of Sciences 113(1): 146-151. Renner, S. S. and Zohner, C. M. (2018), Climate Change and Phenological Mismatch in Trophic Interactions Among Plants, Insects and Vertebrates. Annual Review of Ecology, Evolution and Systematics 49: 162-182. Takahashi, J., Okuyama, H., Kiyoshi, T., Takeuchi, T., & Martin, S. J. (2019). Origins of Vespa velutina hornets that recently invaded Iki Island, Japan and Jersey Island, UK. Mitochondrial DNA Part A, 30(3), 434–439. Van Engelsdorp, D., et al. (2009), Colony Collapse Disorder: A Descriptive Study. PLOS ONE 4(8): e6481. Varela, C. (2023), Why are bees important? And how you can help them (online) (Accessed 01/03/2023). Vogel, G. (2017), Where have all the insects gone? Science 356(6338): 576-579. Author unknown, Climate Action Tracker (date unknown), The CAT Thermometer (online) (Accessed 05/03/2024). -
Time for a common ecological term to get the treatment it deserves. Today, we're exploring the biome. Not only that, but the term ecoregion is getting thrown in as an extra...
Sources for this episode:
Clennett, C., Locke, J. and Jackson, T. (editorial consultants) (2023), How Biology Works. LonondM Darling Kindersley Ltd. Hine, R. S. (2019), Oxford Dictionary of Biology (8th edition). Oxford: Oxford University Press. Rundel, P. W., Arroyo, M. T. K., Cowling, R. M., Keeley, J. E., Lamont, B. B. and Vargas, P. (2016), Mediterranean Biomes: Evolution of Their Vegetation, Floras, and Climate. Annual Review of Ecology, Evolution and Systematics 47: 383-407. Whittaker, R. J. and Fernández-Palacios, J. M. (2007), Island Biogeography: Ecology, Evolution and Conservation (2nd edition). Oxford: Oxford University Press. -
Climate change as a topic is a well-known one. However, we are going to be dissecting a paper published recently which deals with the potential economic impact of a warming world...
Sources for this episode:
TBA
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Today's episode is going to feature one of the later monarchs from the Hellenistic era- Mithridates VI of Pontus. This is because his practice of trying to make himself immune to poison- called mithridatism- is biologically relevant and and continues to be influential until the 18th century.
Sources for this episode:
Jarcho, S. (1972), Medical Numismatic Notes, VII: Mithridates IV. Bulletin of the New York Academy of Medicine 48(8): 1059-1064. Kaberopoulos, D., Karamanou, M. and Androutsos, G. (2012), The art of medicine: The theriac in antiquity. The Lancet 379: 1942-1943. Karamanou, M., Androutsos, G., Hayes, A. W. and Tsatsakis, A. (2018), Toxicology in the Borgias period: The mystery of Cantarella poison. Toxicology Research and Application 2: 1-3. Valle, G., Stanislao, M., Facciorusso, A., Carmignani, M. and Volpe, A. R. (2010), Mithridates VI Eupator, father of the empirical toxicology. Clinical Toxicology 47(5): 433. Author unknown, Wikipedia (date unknown), Antiochus III the Great (online) (Accessed 28/07/2023). Author unknown, Wikipedia (date unknown), Demetrius I Soter (online) (Accessed 28/07/2023). Author unknown, Wikipedia (date unknown), Laodice IV (online) (Accessed 28/07/2023). Author unknown, Wikipedia (date unknown), Laodice VI (online) (Accessed 28/07/2023). Author unknown, Wikipedia (date unknown), Mithridates VI Eupator (online) (Accessed 29/07/2023). Author unknown, Wikipedia (date unknown), Seleucus II Callinicus (online) (Accessed 28/07/2023). -
The Black Death in the 14th century is engrained in the popular consciousness. But how familiar is the first wave of the disease that happened in the 500s? In this episode, we explore what plague is, its evolution, strains and impact on the world of the 6th century according to Procopius.
Sources for this episode:
Achtman, M., Zurth, K., Morelli, G., Torrea, G., Guiyoule, A. and Carniel, E. (1999), Yersinia pestis, the cause of plague, is a recently emerged clone of Yersinia pseudotuberculosis. Proceedings of the National Academy of Sciences of the United States of America 96(24): 14043-14048. Dai, R., He, J., Zha, X., Wang, Y., Zhang, X., Gao, H., Yang, X., Li, J., Xin, Y., Wang, Y., Li, S., Jin, J., Zhang, Q., Bai, J., Peng, Y., Wu, H., Zhang, Q., Wei, B., Xu, J. and Li, W. (2021), A novel mechanism of streptomycin resistance in Yersinia pestis: Mutation in the rpsL gene. PLOS Neglected Tropical Diseases 15(4): e0009324. Dewing, H. B. (1960), Procopius in Seven Volumes. Volume VI: The Anecdota or Secret History. Cambridge, Massachusetts and London: Harvard University Press and William Heinemann Ltd. Dewing, H. B. (1961), Procopius in Seven Volumes. Volume II: History of the Wars: Books III and IV. Cambridge, Massachusetts and London: Harvard University Press and William Heinemann Ltd. Dull, R. A., Southon, J. R., Kutterolf, S., Anchukaitis, K. J., Freundt, A., Wahl, D. B., Sheets, P., Amaroli, P., Hernandez, W., Wiemann, M. C. and Oppenheimer, C. (2019), Radiocarbon and geologic evidence reveal Ilopango volcano as source of the colossal ‘mystery’ eruption of 539/40 CE. Quaternary Science Reviews 222: 105855. Dykhuizen, D. E. (2000), Yersinia pestis: An instant species? Trends in Microbiology 8(7): 296-298. Ke, Y., Chen, Z. and Yang, R. (2019), Yersinia pestis: mechanisms of entry into and resistance to the host cell. Frontiers in Cellular and Infection Microbiology 3(106): 1-9. Kousoulis, A. A., Karamanou, M., Tsoucalas, G., Dimitriou, T. and Androutsos, G. (2012), Alexandre Yersin’s Explorations (1892-1894) in French Indochina before the Discovery of the Plague Bacillus. Acto Medico-Historica Adriatica 10(2): 303-310. Mikaty, G., Coullon, H., Fiette, L., Pizarro-Cerdá and Carniel, E. (2021), The invasive pathogen Yersinia pestis disrupts host blood vasculature to spread and provoke hemorrhages. PLOS Neglected Tropical Diseases 15(10): e0009832. Mordechai, L., Eisenberg, M., Newfield, T. P., Izdebski, A., Kay, J. E. and Poinar, H. (2019), The Justinianic Plague: An Inconsequential Pandemic? Proceedings of the National Academy of Sciences of the United States of America 116(51): 25546-25554. Moseley, J. E. (1981), Travels of Alexandre Yersin: Letters of a Pastorian in Indochina, 1890-1894. Perspectives in Biology and Medicine 24(4): 607-618. Norwich, J. J. (2013), A Short History of Byzantium. London: The Penguin Group. Procopius (1985), The Secret History (translated by Williamson, G. A.). Harmondsworth: Penguin Books Ltd. Rogers, K., Encyclopedia Britannica (2023), Yersinia pestis (online) (Accessed c.01/03/2024). Rosen, W. (2008), Justinian’s Flea: Plague, Empire & the Birth of Europe. London: Pimlico. Sarris, P. (2023), Justinian: Emperor, Soldier, Saint. London: Basic Books UK. Author unknown, Centers for Disease Control and Prevention (date unknown), Protect yourself from plague. Author unknown, Wikipedia (date unknown), Plague of Justinian (online) (Accessed 01/03/2024). -
1-2% of the world's population have red hair. So, we're giving the phenomenon its own episode! Today, we discuss the gene/protein that causes red hair, as well as its psychological and possible medical effects...
Sources for this episode:
Bryant, NIH Research Matters (2021), Study finds link between red hair and pain threshold (online) (Accessed 12/01/2024). Gradwohl, S. C., Aranake, A., Abdallah, A. B., McNair, P., Lin, N., Fritz, B. A., Villafranca, A., Glick, D., Jacobsohn, E., Mashour, G. A. and Avidan, M. S. (2015), Intraoperative awareness risk, anesthetic sensitivity, and anesthetic management for patients with natural red hair: a matched cohort study. Canadian Journal of Anesthesia 62: 345 355. Massachusetts General Hospital, Science Daily (2021), Research reveals why redheads have different pain thresholds (online) (Accessed 12/01/2024). Regan, K. O. (2014), “Red hair in popular culture and the relationship with anxiety and depression”. Thesis submitted for University College, Cork. Rees, J. L. (2000), The Melanocortin 1 Receptor (MC1R): More Than Just Red Hair. Pigment Cell Research 13: 135-140. Robinson, K. C., Kemény, L. V., Fell, G. L., Hermann, A. L., Allouche J., Ding, W., Yekkirala, A., Hsiao, J. J., Su, M. Y., Theodosakis, N., Kozak, G., Takeuchi, Y., Shen, S., Berenyi, A., Mao, J., Woolf, C. J. and Fisher, D. E. (2021), Reduced MC4R signalling alters nociceptive thresholds associated with red hair. Science Advances 7: eabd1310. Author unknown, Wikipedia (date unknown), Nociception (online) (Accessed 12/01/2024). Author unknown, Worldometer (date unknown), World Population Clock: 8.1 Billion People (LIVE, 2024) (online) (Accessed11/01/2024). -
You asked, I delivered! In a sequel to our discussion in episode 58, we're going to shine a spotlight on two more thinkers during the Islamic Golden Age. Along the way we'll also see connections with later thinkers and a cameo from episode 69...
Sources for this episode:
Guerber, H. A. (1929), The Myths of Greece & Rome: Their Stories Signification and Origin. London: George G. Harrap & Company Ltd. Kaack, L. H. and Katul, G. G. (2013), Fifty years to prove Malthus right. Proceedings of the National Academy of Sciences of the United States of America 110(11): 4161-4162. Malik, A. H., Ziermann, J. M. and Diogo, R. (2018), An untold story in biology: the historical continuity of evolutionary ideas of Muslim scholars from the 8th century to Darwin’s time. Journal of Biological Education 52(1): 3-17. Waterman, A. M. C. (1987), On the Malthusian Theory of Long Swings. The Canadian Journal of Economics 20(2): 257-270. Author unknown (1888), The Holy Bible containing the Old and New Testaments: Translated out of the original tongues: and with the former translations diligently compared and revised, by His Majesty’s special command. Oxford: Oxford University Press. Author unknown, Wikipedia (date unknown), al-Biruni (online) (Accessed 11/01/2024). -
Darwin Day is upon us for the fourth time! To celebrate, let's follow Charles Darwin on the first part of his famous voyage between late 1831 and early 1832. We'll see him pour over cuttlefish, travel with veterans of the Napoleonic Wars and arrive in a young Brazilian Empire...
Sources for this episode:
Bannerman, W. M., Lobban, R. A. and Shaw, C. S., Encyclopedia Britannica (2023), History of Cabo Verde (online) (Accessed 08/02/2024).
Bethell, L. (1968), The Independence of Brazil and the Abolition of the Brazilian Slave Trade: Anglo-Brazilian Relations, 1822-1826. Journal of Latin American Studies 1(2): 115-147.
Bieber, J. (2010), Imperial Brazil (1822-29). In: Holloway, T. H. (2010), A Companion to Latin American History. Chichester: Blackwell Publishing Ltd.
Bunker, F. St. P., Brodie, J. A., Maggs, C. A. and Bunker, A. R. (2017), Seaweeds of Britain and Ireland (2nd edition). Plymouth: Wild Natural Press.
Darwin, C. (1945), The Voyage of the Beagle. London: J. M. Dent & Sons, Ltd.
Diamond, J. (2007), Easter Island Revisited. Science 317(5845): 1692-1694.
Jezierski, M. T., Smith, W. J. and Clegg, S. M. (2023), The island syndrome in birds. Journal of Biogeography 00: 1-16.
Litchfield, H. (ed.) (1915), Emma Darwin: A Century of Family Letters (Vol. II). New York: D. Appleton and Company.
Martin, P. A. (1921), Causes of the Collapse of the Brazilian Empire. The Hispanic American Historical Review 4(1): 4-48.
Whittaker, R. J. and Fernández-Palacios, J.-M. (2007), Island Biogeography: Ecology, Evolution, and Conservation (2nd edition). Oxford: Oxford University Press.
Author unknown, Wikipedia (date unknown), Charles II of England (online) (Accessed 08/02/2024).
Author unknown, Wikipedia (date unknown), Robert FitzRoy (online) (Accessed 08/02/2024).
Author unknown, Wikipedia (date unknown), Salvador, Bahia (online) (Accessed 08/02/2024). -
A series of 5000 flowers pressed in the 16th century near Bologna have given scientists an opportunity to see human impacts and the rise of alien species. All while giving us an excuse to touch on what the Columbian exchange actually is...
Sources for this episode:
Anteric, I., Basic, Z., Vilovic, K., Kolic, K. and Andjelinovic, S. (2014), Which Theory for the Origin of Syphilis is True? Journal of Sexual Medicine 11: 3112-3118. Buldrini, F., Alessandrini, A., Mossetti, U., Muzzi, E., Pezzi, G., Soldano, A. and Nascimbene, J. (2023), Botanical memory: five centuries of floristic changes revealed by a Renaissance herbarium (Ulisse Aldrovandi, 1551-1586). Royal Society Open Science 10(11): 230866. Guerra, F. (1993), The European-American Exchange. History and Philosophy of the Life Sciences 15: 313-327. Hancock, J. F. (2023), Fifty Years Later- The Legacy of Alfred Crosby’s “The Columbian Exchange: Biological and Cultural Consequences of 1492”. Economic Botany 77(1): 82-102. Harper, K. N., Zuckerman, M. K., Harper, M. L., Kingston, J. D. and Armelagos, G. J. (2011), The Origin and Antiquity of Syphilis Revisited: An Appraisal of Old World Pre-Columbian Evidence for Treponemal Infection. Yearbook of Physical Anthropology 54: 99-133. Lees, D., Lopez-Vaamonde, C., Augustin, S., Biodiversity Heritage Library, Field Museum et al. (2009), Cameraria ohridella Deschka & Dimic 1986. Encyclopedia of Life, MacArthur Foundation, Sloan Foundation. Ffhal-02824036. McCook, S. (2011), The neo-Columbian exchange: the second conquest of the Greater Caribbean, 1720-1930. Latin American Research Review: 46(S1): 11-31. Milliken, W., Walker, B. E., Howes, M.-J. R., Forest, F. and Lughadha, E. N. (2021), Plants used traditionally as antimalarials in Latin America: Mining the tree of life for potential new medicines. Journal of Ethnopharmacology 279: 114221. Sanz-Biset, J., Campos-de-la-Cruz, J., Epiquién-Rivera, M. A. and Cañigueral, S. (2009), A first survey on the medicinal plants of the Chazuta valley (Peruvian Amazon). Journal of Ethnopharmacology 122: 333-362. Stefanaki, A., Walter, T. and van Andel, T. (2022), Tracing the introduction history of the tulip that went wild (Tulipa sylvestris) in sixteenth-century Europe. Nature Scientific Reports 12: 9786. Weston, P., the Guardian (2023), ‘Inestimable importance’: 500-year-old cache of pressed flowers reveals new secrets (online) (Accessed 17/11/2023). -
It takes our sun 220 million years to orbit around the middle of our home galaxy. But that kind of timescale can be difficult to picture. So, using the International Stratigraphy Chart as a guidance for what different time periods mean in terms of millions of years, let's zoom out to the scale of a galactic year and see what happened in Earth's prehistory one cycle ago, two and so on.
Sources for this episode:
Bach, J. R. (2013), Paradigm paralysis in the management of neuromuscular disease. Journal of Personalized Medicine 11: 24-29. Bottjer, E. J. (2005), The Early Evolution of Animals. Scientific American 293(2): 42-47. Brusatte, S. L., Butler, R. J., Barrett, P. M., Carrion, M. T., Evans, D. C., Lloyd, G. T., Mannion, P. D., Norell, M. A., Peppe, D. J., Upchurch, P. and Williamson, T. E. (2015), The extinction of the dinosaurs. Biological Reviews 90: 628-642. Cameron, G. G. (1968), Zoroaster the Herdsman. Indo-Iranian Journal 10(4): 261-281. Clack, J. A. (2006), Devonian climate change, breathing, and the origin of the tetrapod stem group. Integrative and Comparative Biology 47(4): 510-523. Cohen, K. M., Finney, S. C., Gibbard, P. L. and Fan, J.-X. (2013; updated). The ICS International Chronostratigraphic Chart. Episodes 36: 199-204. Downs, J. P., Daeschler, E. B., Jenkins, F. A. and Shubin, N. H. (2008), The cranial endoskeleton of Tiktaalik roseae. Nature 455: 925-929. Ellery, A. (2003), Book Review: Impossible Extinction- Natural catastrophes and the supremacy of the microbial world. International Journal of Astrobiology 2(2): 153-154. Galway-Whitham, J. and Stringer, G. (2018), How did Homo sapiens evolve? Science 360(6395): 1296-1298. Hazen, R. M. (2010), How Old is Earth, and How Do We Know? Evolution: Education and Outreach 3: 198-205. Hess, F. L. (1925), The Age of the Earth. The Scientific Monthly 20(6): 597-602. Kemp, B. and Zink, A. (2012), Life in Ancient Egypt: Akhenaten, the Amarna Period and Tutankhamun. RCC Perspectives No. 3- Sickness, Hunger, War and Religion: Multidisciplinary Perspectives: 9-24. Kvĕt, R. (1991), Complete Periodical Geological Time Table. GeoJournal 24(4): 417-420. Kvĕt, R. (1995), On the Dependence of Life Evolution on Geotectonic Stages. GeoJournal 37(4): 413-417. Lemberg, J. B., Daeschler, E. B. and Shubin, N. H. (2021), The feeding system of Tiktaalik roseae: an intermediate between suction feeding and biting. Proceedings of the National Academy of Sciences of the United States of America 118(7): e2016421118. MacIver, M. A., Schmitz, L., Mutan U., Murphey, T. D. and Mobley, C. D. (2020), Massive increase in visual range preceded the origin of terrestrial vertebrates. Proceedings of the National Academy of Sciences of the United States of America: E2375-E2384. Meiri, S. (2022), Population sizes of T. rex cannot be precisely estimated. Frontiers of Biogeography 14(2): e53781. Roney, J. C. (2017), 1776, Viewed from the West. Journal of the Early Republic 37(4): 655-700. Sereno, P. C. (1997), The Origin and Evolution of Dinosaurs. Annual Review of Earth and Planetary Sciences 25: 435-489. Vandepoele, K., De Vos, W., Taylor, J. S., Meyer, A. and Van de Peer, Y. (2004), Major events in the genome evolution of vertebrates: Paranome age and size differ considerably between ray-finned fishes and land vertebrates. Proceedings of the National Academy of Sciences of the United States of America 101(6): 1638-1643. Vittinghof, F. (1985), Reviewed Work(s): The Roman Empire 27 B. C. - A. D. 476. A Study in Survival by Chester G. Starr. Gnomon 57 Bd., H. 6: 572-574. Zhuralev, A. Y. and Wood, R. A. (2018), The two phases of the Cambrian Explosion. Scientific Reports 8: 16656. Życiński, J. (2006), Ethics in medical technologies: The Roman Catholic viewpoint. Journal of Clinical Neuroscience 13: 518-523. -
Most people will have come across this term before, but what does it actually mean? Today, we'll be dissecting the terms microbiome and microbiota and looking at what can impact them.
Sources for this episode:
Amon, P. and Sanderson, I. (2017), What is the microbiome? Archives of Disease in Childhood- Education and Practice 102-258-261. Cremon, C., Barbaro, M. R., Ventura, M. and Barbara, G. (2018), Pre- and probiotic overview. Current Opinion in Pharmacology 43: 87-92. Kim, H., Sitarik, A. R., Woodcroft, K., Johnson, C. C. and Woratti, E. (2019), Birth Mode, Breastfeeding, Pet Exposure and Antibiotic Use: Associations With the Gut Microbiome and Sensitization in Children. Current Allergy and Asthma Reports 19: 22. Mariat, D., Firmesse, O., Levenez, F., Guimarăes, V. D., Sokol, H., Doré, J., Corthier, G. and Furet, J.-P. (2009), The Firmicutes:Bacteroidetes ratio of the human microbiota changes with age. BMC Microbiology 9:123. Rautava, S. (2016), Early microbial contact, the breast milk microbiome and child health. Journal of Developmental Origins of Health and Disease 7(1): 5-14. Rees, T., Bosch, T. and Douglas, A. E. (2018), How the microbiome challenges our concept of self. PLoS Biology 16(2): e2005358. Sender, R., Fuchs, S. and Milo, R. (2016), Revised estimates for the number of human and bacteria cells in the body. PLoS Biology 14(8): e1002533. Tojo, R., Suárez, A., Clemente, M. G., de los Reyes-Gavilán, C. G., Margolles, A., Gueimonde, M. and Ruas-Madiedo, P. (2014), Intestinal microbiota in health and disease: Role of bifidobacteria in gut homeostasis. World Journal of Gastroenterology 20(41): 15163-15176. Vongsa, R., Hoffman, D., Shepard, K. and Koenig, D. (2019), Comparative study of vulva and abdominal skin microbiota of healthy females with high and average BMI. BMC Microbiology 19:16. Author unknown, NHS (date unknown), Irritable bowel syndrome (IBS) (online) (Accessed 16/11/2023). - Laat meer zien
