Fish are animals that live in water and breathe through their gills. Gills are like underwater lungs. They have scaly skin that helps them to move through the water and fins that help them swim.

The plesiosaur's smooth and hydrodynamic skin allowed it to swim efficiently to catch fish and other squid-like animals, but ...

Unlike amphibians, reptiles breathe only through their lungs and have dry, scaly skin that prevents them from drying out ... like frogs who serve as a food source for many species of birds, fish, ...

She has dry, scaly skin making her a reptile just like crocodiles ... reptiles that live on the land and in the water. They eat fish and other animals. There are many species of tortoise.