Beginning with primitive Cynodonts in the late Permian, we our evolutionary development through Mesozoic mammaliaforms, the divergence of monotremes from marsupials and placentals, and culiminating in the emergence of primates in the early Cenozoic. Along the way we discuss the emergence of important traits such as the mammalian ear and various primate adaptations for arboreal life. We then discuss the sequence of hominin species in the lead up to to humans, including Ardipithecus, Australopithecus, Homo erectus, and Neanderthals. We conclude with an analysis of the emergence of distinctive human traits, including bipedalism, encephalisation, and extensive tool use. Recommended pre-listening is Episode 161: Dinosaurs and Other Ancient Reptiles.

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A survey of extinct animal species from the Permian through the Cretaceous periods. We discuss important differences between anapsids, synapsids, and diapsids, and then review diverse species from all groups, including pelycosaurs, therapsids, parareptiles, euryapsids, pterosaurs, pseudosuchia, and dinosaurs. We also consider aspects including bipedal gait, endothermy, gigantism, and the cause of the end Cretaceous mass extinction. Recommended pre-listening is Episode 160: The Evolution of Animals.

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A journey through the evolutionary history of animals, beginning with the split of the metazoans from protists about 760 million years ago and ending with the rise of the amniotes about 340 million years ago. The focus is the development of key morphological traits necessary for more complex animal forms, including the origin of true tissues, bilaterial symmetry, the complete gut, the coelom, internal skeletons, and limbs. We conclude with an analysis of key adaptions that allowed amniotes to life in a wider range of terrestrial habitats. Recommended pre-listening is Episode 155: Embryology and Development and Episode 157: The Geologic Time Scale.

If you enjoyed the podcast please consider supporting the show by making a PayPal donation or becoming a Patreon supporter.

https://www.patreon.com/jamesfodor

https://www.paypal.me/ScienceofEverything