The story of human evolution in ancient past is said to be written in our modern bodies. In his book “Descent of Man,” Charles Darwin talks about vestigial structures. A vestigial structure is a body ...

Above the shores of prehistoric seas and lakes, pterosaurs roamed the skies. They were feathered creatures that ranged in ...

The female reproductive system includes internal and external organs, each designed to carry out varying functions. Learn more about the anatomy of this system.

Cats are one of the most captivating creatures in the animal kingdom. They are graceful yet incredible hunters, seemingly ...