The human chin has long been fertile ground for arguments between scientists over its purpose ...

Most people Ð including scientists Ð canÕt see the forest for the Tree, when it comes to understanding the theory of evolution. Charles DarwinÕs famed Tree of Life hypothesis limits and even obscures ...

By combining data on all known bird species, this tree is the most impressive snapshot yet of one of Earth’s most awe-inspiring classes of animal.

It’s also an irreplaceable piece of the tale of evolution that was discovered in 1859 in a tree trunk in Joggins, N.S.

Researchers have mapped the family tree of crocodiles and their extinct relatives to shed new light on why there are so few species of the giant reptiles living today The research team, led by ...