Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Early American humans hunted car-size armadillos and used their shells for houses.
12
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
A lion in the wild usually makes no more than twenty kills a year.
186
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
A dork is a whale's penis.
327