Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9