The Basenji dog is the only dog that is not able to bark.
4
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
The elephant brain weighs about 6,000g.
274
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Whales and dolphins can't taste anything other than salt.
11
Moths are unable to fly during an earthquake.
328
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Jumping fleas can accelerate 50 times faster than the space shuttle.
218