An extinct subspecies of this animal, idaltu, had a longer head than similar species, and idaltu's fossils were discovered alongside hippopotamus bones in Ethiopia.  The hippopotamus was slaughtered with stone tools, suggesting that idaltu was an immediate ancestor to this species and gave credence to the RAO model in hominid evolution.  The Omo remains, discovered by Richard Leakey, are considered the oldest remains for this species, while a more extensive discovery at Jebel Irhoud suggested that childhood lengthened upon the introduction of this species, giving more time for the brain to understand larger groups and rudimentary (*) language.  Homo heidelbergensis is considered the common a
An extinct subspecies of this animal, idaltu, had a longer head than similar species, and idaltu's fossils were discovered alongside hippopotamus bones in Ethiopia.  The hippopotamus was slaughtered with stone tools, suggesting that idaltu was an immediate ancestor to this species and gave credence to the RAO model in hominid evolution.  The Omo remains, discovered by Richard Leakey, are considered the oldest remains for this species, while a more extensive discovery at Jebel Irhoud suggested that childhood lengthened upon the introduction of this species, giving more time for the brain to understand larger groups and rudimentary (*) language.  Homo heidelbergensis is considered the common ancestor of this species and the coexisting Neanderthals.  For 10 points, name this hominid whose early examples were found at Cro-Magnon, modern examples of which may play quizbowl.
An extinct subspecies of this animal, idaltu, had a longer head than similar species, and idaltu's fossils were discovered alongside hippopotamus bones in Ethiopia.  