There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
A giraffe's kick is so powerful that it can decapitate a lion.
216