Cats and dogs can hear ultrasound.
350
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
When you shave a guinea pig it looks like a little hippo.
19
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The Basenji dog is the only dog that is not able to bark.
4
Only 3% of bird species have penises.
0
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46