The Human species, also known as Humanity, Mankind or Man, is the most dominant sapient species in the Milky Way Galaxy in the late 41st Millennium AD in the Warhammer 40k Universe.
Humans are bipedal mammals who have proven to prefer highly stratified, hierarchical societies. Humanity is an aggressively violent, territorial and expansionist species that under the rule of the godly Emperor of Mankind has proven to possess little tolerance for other forms of intelligent life.
Humanity is divided into a multitude of factions, either working for or against the overall interests of mankind in its attempts to retain control over the galaxy and survive unscathed in an incredibly hostile universe.
However, the vast majority of humans live under the authoritarian rule of the interstellar empire known as the Imperium of Man whose primary concern is its archenemy, the daemons of Chaos.
Humans used the Warp-Drive for faster-than-light travel.