You might have some memory of ancient ape sign language
The Croods: Family Tree (streaming now on Peacock!) continues the story of the titular Croods and their semi-familiar ancient world. It opens on a family of cave people living during a fictional part of the Pliocene, a period from 5.4 to 2.4 million years ago. In the real world, that’s right around when the world was walked by Ardipithecus (potentially one of the earliest splits between humans and chimpanzees) and later Australopithecus and Homo habilis.