Guy helps the family of The Croods to walk on some pointy plants due to his invention (the shoes), a tool that they will use for the first time in their lives.

Guy helps Eep to set up a trap to catch an animal, this will be her first time to see someone hunting in an innovative way.

Guy uses fire to save Eep and her family from the bloodthirsty birds, by using the fire as a weapon .

This clip explains the known history of the Neanderthals, who were the closest relatives to the modern human in the family tree. They lived about 400,000 - 40,000 years ago. This clip discusses their habitat and the evolutionary adaptations that may have allowed them to survive a cold, glacial ecosystem. It then speculates the leading theories surrounding their mysterious disappearance.

The Croods use the new tools and domesticate various land mammals. Tools and animal domestication are two qualities that first set humans apart from the rest of the environment, and are some of the reason humans dominate the Earth today.