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. Fish can be grouped into the more basal …

Jul 28, 2022 · A fish is an aquatic vertebrate with fins and gills. The body of a typical fish is streamlined and covered in protective scales. Around half of all known vertebrates are fish, …

May 19, 2025 · A fish is any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living fish species range from the …

Feb 12, 2019 · Fish have varieties in color, shape, and size, from tiny seahorses to giant whale sharks. Fish have fins for stability and movement, gills for breathing, and sometimes a lateral …

Dec 27, 2022 · The term “fish” refers to a diverse group of aquatic creatures known for living in water environments. Fish are characterized by their gills, which they use for breathing …

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 …

Fish are a group of aquatic animals with skulls, gills and digitless limbs. They are separated into four groups: cartilaginous fish (such as sharks and rays), bony fish, jawless fish, and hagfish. …

Feb 1, 2023 · Fish are undeniably a healthy food, but they can have high levels of contaminants, too. Save this list of some of the safest fish with the best nutrition profiles.

Feb 13, 2018 · Fish biologists have described more than 30,000 species of fish in the world. Visit NPSpecies to see what species of fish are found in national parks. Scientists classify fish into …

All fish share two traits: they live in water and they have a backbone—they are vertebrates.