How Do Animals Do That? - Season 1 Episode 3 -
Backwards Birds and Slimy Sea Creatures
In this episode, we ask: how do hummingbirds fly backwards? Will cockroaches really survive the apocalypse? How do dogs know when we're sad? And, is there any underwater creature more revolting than the hagfish?
Please explain the problem in a few words.
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Max 255 characters.