Giganotosaurus carolinii and Alnashetri cerropoliciensis Symbiosis stock image

Giganotosaurus is one of the biggest predators to have ever existed. It was a carcharodontosaurid theropod dinosaur that shared an environment with Alnashetri, a coelurosaur shown here engaging in symbiotic behavior.

Illustration by Sergey Krasovskiy