Rattlesnake mating sessions have been known to last more than 22 hours.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Giant Anteaters' front legs look like a panda.
48
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34