Knuckle-walking chimpanzees go 3-D with ‘Avatar’ technology
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News and Views Knuckle-walking hominid ancestors
Richmond & Strait (2000) have attracted much attention with a recent morphometric analysis of distal radii of anthropoids and hominid fossils, suggesting some of the latter share knuckle-walking traits. Several aspects of their treatment deserve comment. These authors show A.L. 288-1q,v and the putative hominid fossil KNM-ER 20419 falling near chimpanzees and gorillas in a canonical analysis of...
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This paper describes the development of a knuckle walking mode of locomotion by a free-living yellow baboon (Papio cynocephalus). Some implications of this occurrence for theories of the evolution of knuckle walking are discussed.
متن کاملOrigin of human bipedalism: The knuckle-walking hypothesis revisited.
Some of the most long-standing questions in paleoanthropology concern how and why human bipedalism evolved. Over the last century, many hypotheses have been offered on the mode of locomotion from which bipedalism originated. Candidate ancestral adaptations include monkey-like arboreal or terrestrial quadrupedalism, gibbon- or orangutan-like (or other forms of) climbing and suspension, and knuck...
متن کاملThe Avatar: 3-D Face reconstruction from two orthogonal pictures with application to facial makeover
In this report an algorithm for the fast reconstruction of a textured 3-D face model of the given individual from his two orthogonal pictures – a frontal view and a profile view is presented. Then a possible application to the facial makeover of the individual is also conceptualized. The algorithm needs minimal human intervention for construction and does not need any special setup, or the came...
متن کاملWhen myosin heads go walking
Schwann cells don caps, touch nodes n vertebrates, axons are covered with an insulating myelin sheath, punctuated by gaps called nodes of Ranvier where voltage-gated sodium channels cluster. The nodes are essential for propagating action potentials along the axon, but little is known about how they develop. Gatto et al. (page 489) imaged live cell cultures to watch Schwann cells myelinate expla...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2020
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.231860