The Basenji dog is the only dog that is not able to bark.
4
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20