Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A dork is a whale's penis.
327
A lion in the wild usually makes no more than twenty kills a year.
186
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Denmark has twice as many pigs as there are people.
66
Gorillas can catch human colds and other illnesses.
205
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