Why do giraffes have long necks? Answers to 25 animal evolut

Evolution has shaped life since its emergence, progressing for more than 2 billion years before the first animals evolved from their primal ancestors.

Related Keywords

United States , Antarctica , Australia , Greenland , Guinea , America , Lisa Hagan Shutterstock , Rebecca Schreiner Shutterstock , Arctic Shutterstock , Rudmer Zwerver Shutterstock , Volodymyr Burdiak Shutterstock , Kandarp Shutterstock , Olga Visavi Shutterstock , Charles Darwin , Bernd Schierwater Wikimedia Commons , Eugene Troskie Shutterstock , Catmando Shutterstock , Maciej Olszewski Shutterstock , Oleg Znamenskiy Shutterstock , Susan Flashman Shutterstock , Ddstock Shutterstock , Steve Rupp , National Science Foundation , National Science , South America , North America , New Guinea , Scientific Reports ,