Oct 18, 2022 · However, if the two trout were joined by a salmon, you could describe them as fish or fishes. Fish can refer to multiple fish, especially when they are all the same species of fish.

A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill -bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.

Apr 8, 2025 · fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes.

Dec 27, 2022 · Fish, diverse and fascinating, inhabit various aquatic environments. This vast group includes familiar species like salmon and cod, as well as exotic ones like angelfish and …

Learn all about Fishes - what is a fish, their evolution, anatomy, characteristics, life cycle, adaptations, and much more - with pictures.

At present, FishBase covers >33,000 fish species compiled from >52,000 references in partnership with >2,000 collaborators: >300,000 common names and >55,000 pictures. Our website gathers more than 700,000 visits monthly.

Jan 3, 2023 · Fish are aquatic vertebrates. They usually have gills, paired fins, a long body covered with scales, and tend to be cold-blooded. “Fish” is a term used to refer to lampreys, sharks, coelacanths, and ray-finned fishes, but is not a taxonomic group, which is a clade or group containing a common ancestor and all its descendants.

All fish share two traits: they live in water and they have a backbone—they are vertebrates. Apart from these similarities, however, many of the species in this group differ markedly from one...

Jul 28, 2022 · The ultimate guide to fishes & fish life, including definition of a fish, fish bodies, types of fish and the life-cycle of a fish. Read on for a complete guide to ichthyology…

May 21, 2024 · Fish are aquatic vertebrates that typically have gills, fins, and a streamlined body. They inhabit diverse environments, from freshwater rivers and lakes to salty oceans and deep …