One of the hominids finds an animal carcass and recalls the black monolith he previously saw. He makes a connection and realizes that he can use the bone as a tool. He uses the bone to destroy the carcass and eventually uses it to kill other animals for food. The hominids change from herbivores to omnivores and use tools for war.

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.

The characters in A Few Good Men are members of the US military. Their uniforms symbolize their investment in the military as an institution, allowing them to visibly indicate their pride at representing the Marines or the Navy.

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

Baines teaches Detroit Red the symbolism of language through the contrast of the two words, "black" and "white." He suggests that society views the white man as the definition of "white" and the black man as the definition of "black."