Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
A domestic cat can sprint at about 31 miles per hour.
274
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The largest earthworm on record was found in South Africa and measured 22 feet.
151
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6