Chimps wading through water on two feet
02:43
A lyrebird imitates the sounds of a camera, a car siren, and cha.wmv
A lyrebird imitates the sounds of a camera, a car siren, and chainsaw
Who has this? Everyone has highs and lows. They're basic responses to events in our lives, but three in every one or so of us know first hand the highs (mania) and lows (depression) that go well beyond the range of common experience.
What we do to preserve cranes
Talk about sexual competition
Scavengers
An insect parasite
Macacques hunt underwater
Cicada
Blue whales
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