Viviparity is the reproductive style where embryos develop inside a parent’s body instead of inside an egg the parent lays. It’s a very familiar habit to us placental mammals, but it’s also an extremely widespread and diverse feature of life. Seriously, it’s ridiculous just how many times viviparity has evolved and just how many different ways species have found to be viviparous. In this episode we’ll answer such questions as: How and why does viviparity evolve? What features vary from one viviparous group to the next? And how do we identify viviparous animals in the fossil record?
In the news: army ants, oldest lizards, beaver families, and swimming dinosaurs.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:30
Main discussion, Part 1: 00:33:30
Main discussion, Part 2: 01:13:30
Patron question: 01:46:30
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The Intro and Outro music is “On the Origin of Species” by Protodome.
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Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0
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Episode 168 – Marine Crocs
Croc Chat with Will
Episode 167 – Geologic Dating
Episode 166 - Monotremes
Episode 165 - Fruit
Episode 164 - The ”Boring Billion”
Patron Mini-Episode Compilation #3
Episode 163 - Claws
Episode 162 – Caecilians
Episode 161 - Sleep
Episode 160 - The Messel Pit
Episode 159 - Giraffes
Episode 158 – Charles R. Knight
Episode 157 - Bioluminescence and Biofluorescence
Episode 156 - Eurypterids (Sea Scorpions)
End of the Year Q&A 2022
Episode 155 - Gymnosperms
Episode 153 - Armadillos
Episode 152 - The Jehol Biota
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