When dragonflies mate, their tails form a love heart.
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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.
9
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9