Cats and dogs can hear ultrasound.
350
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Only 3% of bird species have penises.
0
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20