A recent study shows that selfish people will not be advantageous in evolution and will sooner or later be extinct.
On the diving area of the Bahamas, Mikhail V. Matz of the University of Texas, Austin and some colleagues are looking for big, glowing eyes to adapt to the dark.
American scientists believe that the world's first snakes have small hind legs, ankles and even toes.
Multicellular organisms can evolve in the pre-Cambrian period, 100 million years earlier than the previous scientific calculations.
As a superior predator, humans force animals to change their body size and reproductive age at a rate three times faster than the natural effect.