Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Dogs sometimes fake being sick to get attention.
26
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Squirrels forget where they hide about half of their nuts.
698