Coelacanth, the "Hollow Spine," is a rare fish that has roamed the oceans for hundreds of millions of years since the Devonian Period. With a length of two meters, the coelacanth compares in size to other fishes that lived during its long existence. In the over four hundred million years since the Devonian Period, the coelacanth has changed its form little. For a hundred years, science believed it to be extinct before its rediscovery. Upon rediscovery in 1938, the coelacanth cemented itself as a living fossil. Living along African coasts and in Indonesian waters, its food and temperature needs restrict it to these areas. It feeds in underwater caves and crevices ay night, but During the day, it rests and saves vital energy for feeding time. The coelacanth's existence is threatened by deep-sea trawling, despite the lack of commercial value for the fish (apart from museums and private collectors). Only two species of coelacanth remain alive today, both threatened, making them some of the most endangered animals on Earth. Many governments around the world allocate money to the conservation of the coelacanth population, of which no more than a few hundred is estimated; without this important effort, the animal that braved more than four hundred million years may join the past with extinction.