Crash Course Zoology

Brainy & Brainless Animals

We're going to take a closer look at brains, how animals use them, and how some animals have even evolved to lose them! It turns out a brain (and intelligence more broadly) isn't easy to define, but what we do know for sure is that brains have evolved over time in response to the challenges in an animals' environment.

More Episodes

Frontiers in Zoology

We review all that we've learned in this final episode.

What is a Species?

We try to figure what "species" really means.

Phylogenetic Mysteries

We try to answer mysteries from DNA sequences to where all the baby eels are!

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