The seahorse is the only fish to have a neck.
12
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9