Photosynthesis is the process in which sunlight is used up, in order to generate glucose for carrying out the required metabolism of the body, this process is chiefly used by plants and sun is their source of energy. Is it possible that animals can use the same process to generate their own energy directly rather than hunting and feeding upon other animals to provide nutrition to the body for carrying out the required metabolism for living. Animals are very weird and distinct, they tend to ignore rich source of energy above their heads and invest large quantities of energy for eating and digesting food.
However many animals like corals and algae use sunlight to produce glucose, similarly other animals from sponges to sea slugs use the same process to fulfill body requirements. Some other reports suggest that aphids are same creatures who utilize the same trick. All of these have something in common i.e. no backbone.
Recently, it has been found that some species of salamander are solar powered, which absorbs light and converts it into glucose and releases oxygen. These species of salamander are first to be recognized as self sustainable living organism in the category of vertebrate. Hence the name is justified “The first solar-powered vertebrate”.