EVOLUTIONARY definition: 1. relating to the way in which populations of living things change and develop over time 2…. Learn more.

2025年2月17日 · The virtually infinite variations on life are the fruit of the evolutionary process. All living creatures are related by descent from common ancestors. Humans and other mammals descend from shrewlike creatures that lived more than 150 million years ago; mammals, birds, reptiles, amphibians, and fishes share as ancestors aquatic worms that lived 600 million years ago; and all plants and animals ...