The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Early American humans hunted car-size armadillos and used their shells for houses.
12
The reindeer is the only mammal that can see UV light.
17
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The largest breed of rabbit is the Flemish Giant.
65