Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Alligators can live up to 100 years.
337
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
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Lobsters have blue blood.
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