The Basenji dog is the only dog that is not able to bark.
4
The elephant brain weighs about 6,000g.
274
A 42-foot sperm whale has about 7 tons of oil in it.
209
In Australia, there are spiders big enough to eat snakes.
20
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6