It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
In Australia, there are spiders big enough to eat snakes.
20
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132