I will dig my animal physiology texts out of the attic this weekend and see if they mention anything about strength differences. That fossil species, best known for Lucy’s partial. I'm not saying a chimp is 10 times stronger than the average man because I have no data that supports that, but it is plausible. the captive chimpanzees exhibited the full range of grips and associated hand movements used by chimpanzees in their natural habitats for feeding. Hand fossils showing a more humanlike design and grip first appeared in a later hominid, Australopithecus afarensis, Prang’s group reports. Napiers conclusion that chimpanzees were incapable of precision grip was based on two subjects and prehension of a single object (i.e., a grape). Childrens hands gripping monkey bars while playing at the playground. A precision grip, thumbfinger opposition, has been regarded as an uniquely human trait. Importantly, these strength measures are based on what scientists call mass. So it is very plausible that an ape can be much stronger than a man even if it is smaller based on the mechanical advantage it gains from its structure. Find the perfect monkey grip stock photo, image, vector, illustration or 360 image. Chimpanzee muscle is composed of approximately 67 percent fast-twitch fibers, compared to about 40 percent in humans. Sort of like the same way a chimpanze has a different shape than you or I. They have differnt tendon thickness, etc. The chimpanzee’s hand (left) has much longer fingers, a longer palm, and a shorter thumb than the human hand (right). No dog of the same size even comes close. But the mountain lion can leap 8 to 10 feet into the air and 15-20 feet forward with a running start. The muscles in the mountain lion's hind legs do not have to be different or larger than that of the dog. These differences may not look like much on the surface, but it could translate into a tremendous difference in power.Ĭompare a mountain lion with that of a dog of similar size. Although there may or may not be differences in the proportion of muscle types and hormones each animal produces allowing for strength gains there is a huge structural difference with their body that can give them a mechanical advantage compared to a human being (length of limbs, bone shape, thickness of connective tissue, muscle density, where the muscles attaches, etc). I'm not an animal physiologist, but the fact is these animals have different morphology than humans and thus can be a great deal stronger. Here is an article which provides information on why there are signficant differences in ape and human hand structure, function, and thus strength:
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