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Crash Course Zoology
Animals Working Together
Season 1
Episode 10
Social behavior like caring for our young, fighting off rivals, or joining a pack adds a whole other layer of complexity to the lives of animals out there. We dive into the amazing ways animals interact with other animals, live a day in the life of the Portuguese Man O'War, and learn how these complex social interactions go way beyond anything humans are capable of!
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12:35
We review all that we've learned in this final episode.

12:35
We try to figure what "species" really means.

12:32
We try to answer mysteries from DNA sequences to where all the baby eels are!

13:00
We explore sex and gender and how animals pass down genetic information.

12:42
We discuss how animals use senses to explore their environment and communicate.

11:56
We explore the evolution of ears and animals' genetic adaptations of them.

12:39
We walk through the history of eyes, how they work, and vision's evolutionary advantage.

12:45
We take a closer look at brains, how animals use them, and how some evolved to lose them.

13:35
We explore carnivores, herbivores, and omnivores and how animals help redefine food.

13:16
We take a look at the various ways animals can grow.

11:29
We try to figure out what that “average” animal would really look like.