Articulation of Human Hands in Comparison to Bear Paws
Chimpanzees, apes, and gorilla share a very similar anatomy but another mammal also shares a similar anatomy to humans as well. The bear in particular also shares a similar anatomy, specifically the paws of a bear when compared to a human’s hands. Even with similar anatomy, the bear is mostly a quadruped mammal, but is capable of bipedalism, while humans are bipedal mammals. In humans, the hand is meant for a variety of different flexing hand movements allowing for very specific holding and gripping. Meanwhile, in a bear forearm and paw they bring much more strength to carry the massiveness of the body of the bear while walking and running. I hypothesize that the paw …show more content…
This articulation allowed the manufacture of early tools increasing the survivability of humans. During the transition from a quadruped mammal to a bipedal mammal, the arms did not have to sustain the weight of the chest cavity and a majority of the weight of was being transitioned to weight upon the pelvic region and legs. Thus as weight was no longer being pressure onto the carpals and phalanges they had decreased in size. They have also increased in amount of different carpals in order to sustain the variable articulation beginning to be …show more content…
Meanwhile the human subject will be able to grab the smaller blocks with a smaller of amount of phalanges compared to the bear subject. Both subjects will be able to grab most objects with increasing amounts of phalanges being available. For the second section of the experiment involving the use of cinematography, the predication will be that the human will be much less effective at running than the bear in a quadrupedal motion and the bear subject will be much less effective at running in the bipedal motion than the human subject. The third and final section of the experiment with the use of comparative anatomy will be observed that the bear paw will contain much more larger carpals but they will be larger in that they have fused together in order to uphold better support and structure to the body of the bear subject. The bear paw will most likely contain some closer remnant to a calcaneus bone as compared to a human hand. The change in a hand from quadrupedalism to bipedalism in humans has affected humans in the sense that they now have a much greater arrangement of articulation of the hand. This allows a variety of possibilities to create and utilize various objects to