Lobsters have blue blood.
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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.
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Dogs sometimes fake being sick to get attention.
26
Tigers can see 6 times better at night than humans.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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