A new specie of fish is seen in this undated photo released June 17, 2004. Brazilian scientists have discovered a new species of fish related to the shark family that has been swimming the seas since the dinosaur age, a researcher involved in the project said on Thursday. The fish, which is a kind of chimaera, or ratfish, is about 12 inches to 16 inches (30cm to 40cm) long, has large, wing-like fins, a whip-like tail and exposed nerves along its body that help it navigate in the deep, dark waters where it lives.