Your Inner Fish

The discoveries suggest that humans are sharing the ancestor with the prehistoric fish. This theory sounds interesting to me since fishes don’t seem to have limbs, do they? It can be proved from the fossil record and the biology analysis. In the film, Your Inner Fish, the geologist showed the hand bone of human and the limb fossil of the prehistoric fish. After comparing, it is found that they are the same set of bones which just squashed to support different functions (Cook, Tate and Shubin, 2014). Besides, there are also people with the similar trait of fish. In the video, a woman has a little pit behind one of her ear, which could be viewed as the fish gill (Cook, Tate and Shubin, 2014). However, how could the fish with fins suddenly evolved