Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71