Homo

Homo is a genus of upright primates that walk on two legs. The only living species in this genus is Homo sapiens: modern humans.

 Ancestry 
The genus began about 2.3 million years ago. Its ancestors were almost certainly some line of Australopithecine apes. Compared to them, species of Homo have:
A larger brain (above 900ml)
Improved walking and running ability.

 Evolution 
As the genus evolved, the forehead became more vertical, the skull became rounder, the teeth got smaller, the arms got shorter and the legs got longer. The skeleton became more delicate, particularly in our species. 

All Homo species used stone tools, but there is no evidence of when language developed. Human evolution remains a much-studied topic.Alexander, Richard D. 1990. How did humans evolve? Reflections on the uniquely unique species. Special Publication. Ann Arbor, MI: Museum of Zoology, University of Michigan.Flinn, Mark V.; Geary, David C.; Ward, Carol V. 2005. Ecological dominance, social competition, and coalitionary arms races: why humans evolved extraordinary intelligence.  Evolution and Human Behavior. 26 (1): 10–46. Hartwig, Walter C., ed. 2002. The Primate fossil record. Cambridge Studies in Biological and Evolutionary Anthropology. 33.  ISBN 978-0-521-66315-1

Extinct species
 Homo habilis
 Homo rudolfensis
 Homo ergaster
 Homo erectus
 Homo floresiensis
 Homo rhodesiensis
 Homo georgicus
Homo naledi
 Homo antecessor
 Homo cepranensis
 Homo heidelbergensis
 Homo neanderthalensis
 Denisovans

 References 

Category:Hominins