Cats recognise the voice of their owner, but never evolved to care.
22
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Lobsters have blue blood.
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