And you don't have to be the same physical size (although
extreme size differences limits some postures).
Not exact matches
«Not only does the model work for explaining
differences in basic molar design, but it is also powerful enough to accurately predict the range of variants in
size, shape, and additional cusp presence, from the most subtle to the most
extreme, for most apes, fossil hominins, and modern humans,» says Ortiz.
Because of the obvious humanness of the Turkana Boy fossil, and the fact that H. erectus brain
sizes overlap the
extreme lower range of modern human brain
sizes, creationists have nowadays almost entirely abandoned the old line (popularized by Duane Gish) that Peking Man and Java Man are apes, and now generally claim that Homo erectus fossils are a variant form of modern humans (ignoring the inconvenient fact that there are many obvious
differences between Homo erectus and Homo sapiens).
A gap between these two numbers is not unusual, as the energy content in a tonne of coal can vary considerably, but the
size of the
difference this year is
extreme.