Rattlesnake mating sessions have been known to last more than 22 hours.
232
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
A group of kittens is called a "kindle".
10
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
The oldest recorded elephant lived for 82 years.
213
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16