Neanderthals.

A Type of Humans lived in Europe, Asia around 200,000 years ago to 40,000 years ago.

They are Mammoth enemies same with the Homo Sapiens.

They have killed many Mammoths due to their spears and shit.

They are now extinct due to probably absorbed into the Homo Sapien gene pool.

Mammoths had 20 wars with Neanderthals until Homo Sapiens came.