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It's Okay to Be Smart
Why Is Sex a Thing?
Season 9
Episode 9
Why does sex exist? You might think the obvious answer is “reproduction” but there are plenty of organisms on Earth that don’t require sex to reproduce. And the more that scientists examined sex, the more they realized that it’s an expensive and inefficient way to get your genes to the next generation. The true purpose of sex is actually one of the longest-standing mysteries in biology.
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27:56
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12:31
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10:00
Join Joe in this whirlwind tour of the endocrine system to find the answers.
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17:59
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10:41
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19:07
Illusions teach us how our brain constructs a three-dimensional reality using 2-D images.
22:18
Joe talks biology with science communicator extraordinaire Prof. Brian Cox.