Batman Fish
Oddly shaped, like an alien who comes from outer space. Yet these animals have some uniqueness. Heavy weight 40.000x females can reach the male, the males only 2.4 cm in length while the females really big.
Fish in some aspects. Gills they should be able to water while maintaining salt levels in body fluids simultaneously. Adaptation of the fish scales also play an important role; freshwater fish that lost a lot of scales will get the excess water that diffuses into the skin, and can cause death in fish.
