The rare and elusive sharks that live for hundreds of years
This shark may have be roaming the ocean for about 500 years... Meet the Greenland shark, the oldest vertebrate known to man.
Y aun mas
These fish undergo a complete metamorphosis
The female centipede protects her offspring for several weeks
Why house cats with white fur are often deaf
The gaur is the largest wild bovid in the world
The blackbuck is one of the fastest mammals in the world
What would happen to Earth if humans suddenly disappeared ?