Alligators can live up to 100 years.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
When dragonflies mate, their tails form a love heart.
22
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13