Domestic pigs average a top speed of about 11 miles per hour.
182
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The station master and operating officer at the Kishi Station, Japan, is a cat!
18
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12