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Episode 188 - Cannibalism

The Common Descent Podcast

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Evolution of River Dolphins and Arctic Ecosystems

The chapter discusses the discovery of a newly found Miocene-age river dolphin, Pebanisto Yacaruna, in the Amazon region, comparing its features with other river dolphins and exploring its phylogenetic relation to South Asian river dolphins. It delves into the evolution of river dolphins across different lineages and the environmental changes that led to the transition to the modern Amazonian ecosystem. Additionally, it explores research on the mid-Cretaceous Nanushuk Formation in northern Alaska, highlighting the climate, habitats, and ecosystem of that time, including dinosaur presence and trackways.

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