Fish

Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.

Inside the surprising social networks of fish (yes, fish)

Warming Oceans May Lead to Smaller Fish

Learn About Symphysodon Discus (Pompadour Fish)

Inside the International Effort to Save One Tiny Mexican Fish

Is there really no such thing as a fish? - Discover Wildlife

Pacu: Boy catches fish with 'human-like teeth' in an Oklahoma pond

Parrotfish

Fish Images – Browse 6,736,736 Stock Photos, Vectors, and Video

Fish Feel Pain. Now What?

Never-before-seen fish found more than 3 miles under the sea

22 Small Aquarium Fish Species for Your Freshwater Tank

11 Easiest Fish to Take Care Of For Beginners

Do Fish Feel Pain?