Human (Blue Earth and Green Mars)

Humans are the native species of the planet Earth.

Humans were said to have originated in Africa 200,000 years ago and reaching full behavioral modernity around 20,000 years ago.

Along with the Martians, humans have a highly developed brain (though less developed than lunans), capable of abstract reasoning, languages, introspection, and problem solving. This mental capability, combined with an erect body carriage that frees the hands for manipulating objects, has allowed humans to make far greater use of tools than any other living species on Earth.