Sunfish

Sunfish probably look the way they do based on the environment they are in and some part of maybe the evolution of the fish since it was stated that it was closely related to the pufferfish. Sunfish may have evolved they way that they did is because when you get deeper down in the ocean, fish start to adapt different things that can help them survive. Since the sunfish like to take in sun rays and dive deep, they have the bodies that help them dive, yet the skin to help them soak in the sun. New species appear from the adaptation of a new environment or habits from already existing animals. New habits or change in environment causes animals to have to change in a way thats beneficial, either losing old habits or gaining new ones. Why new species appear is to help them survive better in the new "situation." I believe that sunfish have a 50/50 percent chance of living. From the way they were able to adapt to catching sun rays, the change of the way they swim and one species of the sunfish changing its body shape shows that they can evolve but at the same time they are prey.