The elephant brain weighs about 6,000g.
274
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cats and dogs can hear ultrasound.
350
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156