Three Spine Stickleback Fish

150 Words1 Page

An earthquake landed at 9.2 on the Richter scale and the second highest ever recorded initiated a geological uplift of four to five meters (13-16 feet) and captured the fish in newly formed ponds on islands in the Gulf of Alaska, south of Anchorage in 1964. This natural disaster stranded seawater-native fish in new formed freshwater ponds on three different islands. In just decades, the three spine stickleback went through changes in their genes causing their external traits to alter such as, their eyes, shape, color, bone structure and body armor to survive in fresh water after the destructive force. The genome itself is being rapidly reshaped. Stickleback fish can adapt on this time scale because the species as a whole has evolved, over millions

More about Three Spine Stickleback Fish

Open Document