Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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
A giraffe's kick is so powerful that it can decapitate a lion.
216
The Basenji dog is the only dog that is not able to bark.
4
The largest earthworm on record was found in South Africa and measured 22 feet.
151
A group of kittens is called a "kindle".
10