Up Next
Back to Show
Crash Course Zoology
Reproduction
Season 1
Episode 9
Sexual reproduction is part of the very definition of what it means to be an animal and as you'll see life has found a variety of methods to pass down genetic information. We explore the differences between sex and gender, and look at sex determination systems, examine how same-sex behavior happens all across the animal kingdom, and live a day-in-the-life of a hermaphroditic clownfish.
Support Provided By
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!
13:21
We dive into the amazing ways animals interact with each other.
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.