The reindeer is the only mammal that can see UV light.
17
Whales and dolphins can't taste anything other than salt.
11
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The seahorse is the only fish to have a neck.
12
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
A domestic cat can sprint at about 31 miles per hour.
274