A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The largest breed of rabbit is the Flemish Giant.
65
The largest earthworm on record was found in South Africa and measured 22 feet.
151
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268