What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
Shortening of jaws
Binocular vision
Increasing brain capacity
Upright posture
the evolution of man is characterized significantly by the increase in cranial capacity. The text traces this trend: Homo habilis had a brain capacity of 650-800cc, Homo erectus had a large brain around 900cc, and the Neanderthal man had a brain size of 1400cc. While upright posture evolved early (Australopithecines), the progressive increase in brain size is a defining trend in the Homo lineage.
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