A fish is an aquatic, anamniotic, gill -bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and …

Oct 28, 2025 · A fish is any of approximately 34,000 species of vertebrate animals found in the world’s fresh and salt waters. The term fish is applied to a variety of vertebrates of several …

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…

Fish Factoid Notice how we sometimes use the word "fish" and sometimes the word "fishes?" What's the difference? It's a little more complicated than singular and plural. Scientists use the …

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 …

Fishes are animals that live and swim in the water (although you might see a fish like a mudskipper or walking catfish crawling on land), are cold-blooded (except for tunas and …

Fish provide humans much of their protein, offer recreational use via fishing, provide a sense of beauty as ornamental fish, and even serve in religious symbolism.

FishBase is a global biodiversity information system on finfishes. Its initial goal to provide key facts on population dynamics for 200 major commercial species has now grown to having a …

May 27, 2024 · A fish is an aquatic vertebrate animal that typically uses gills for respiration. Its skull can be either bony or cartilaginous. Its fins, limbs adapted especially for traversing an …