Sentences with phrase «human brain size»

So although the extreme lower range of modern human brain sizes does overlap that of Homo erectus, their skulls are very different: in H. erectus, the brain case really is smaller in relation to the rest of the skull.

Metabolic acceleration and the evolution of human brain size and life history.

Heat helps free up energy by softening foods, denaturing their proteins and breaking down toxins, Wrangham proposed, which is why cooking may explain human brain size as well as small canine teeth and small guts in comparison to other primates.

As human brain size increased rapidly over the past million years, our ancestors began to think increasingly about the inevitability of death and the redemptive possibility of everlasting life.

The conclusion also questions Wrangham's hypothesis that an increase in human brain size was tied to the invention of cooking.

ABOUT - FACE Just as I begin to absorb these varying interpretations, I am hit with the next surprise in our human evolutionary narrative: After a long, slow retrenchment, human brain size appears to be rising again.

Near the end of the article on human evolution, the author suggests that the primary limitation on human brain size is female hip structure.

Various sources, some of them creationist, give lower limits for human brain size of 900 or 830 cc.

Returning to the «for the sake of argument» concession above: it is not true, in any meaningful sense, that normal modern human brain sizes go down to 700 cm3.

For all practical purposes, modern human brain sizes range from 900 cm3 to 2000 cm3.

The smallest actual human brain size Lubenow can find cited anywhere is 790 cm3.

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).

Human brain size was limited only until our brains developed the cesarean section, which becomes more common with every generation, allowing virtually limitless brain - growth parameters for the future.

Over the last seven million years, human brain size has tripled.

How does the human brain size measure up to other species?