X-ray of human and chimpanzee skulls
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X-ray of human and chimpanzee skulls
Primate skulls. X-ray of the skulls of a chimpanzee, Pan troglodytes, and human, Homo sapiens seen from the side. The chimpanzees cranium (brain-case, upper left) is considerably smaller than that of the human. Both consist of many spongy bones fused at sutures. Chimpanzees have prominent brow ridges (upper left) above their eyes. The large mandible bone (lower jawbone, lower left) has powerful chewing muscles attached to it. Chimpanzees feed largely on fruit by grinding it down with their flat molar teeth. The human jaw (lower right) also houses numerous teeth. Both humans and chimpanzees evolved from a common primate ancestor
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6419720
© D. ROBERTS/SCIENCE PHOTO LIBRARY
Bone Bones Chimpanzee Evolution Evolutionary Historical Image Pan Troglodytes Primate
EDITORS COMMENTS
This print showcases the fascinating comparison between the X-ray images of a human and chimpanzee skull. The intricate details are brought to light, revealing distinctive features that shed light on our shared evolutionary history. In this side view, we witness the striking difference in cranial size between these two primates. The chimpanzee's cranium appears notably smaller than that of its human counterpart, emphasizing the remarkable expansion of our own brain-case over time. Both skulls consist of numerous spongy bones fused together at sutures, highlighting their structural similarities. However, it is impossible to ignore the prominent brow ridges above the chimpanzee's eyes, which serve as a distinguishing characteristic absent in humans. The lower jawbone or mandible reveals another intriguing contrast. Chimpanzees possess a robust mandible with powerful chewing muscles attached to it - an adaptation for their fruit-based diet that requires grinding food with flat molar teeth. Meanwhile, humans also house numerous teeth within their jawbone but have evolved distinct dietary habits throughout history. This mesmerizing image invites us to reflect upon our primate ancestry and underscores how both humans and chimpanzees share common origins from a distant primate ancestor. It serves as a testament to evolution's incredible journey and reminds us of our interconnectedness with other species on this planet.
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