A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Gorillas can catch human colds and other illnesses.
205
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A group of kittens is called a "kindle".
10
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25