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.

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 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.

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…

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...

Dec 27, 2022 · Fish are characterized by their gills, which they use for breathing underwater, and typically have a body covered with scales. They are a major group within the animal kingdom …

The cyprinid fish (8mm) and the whale shark (12m) are some of the smallest and largest fish in the sea. At first, this might seem like an easy question to answer, but it is difficult to define …

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 …

May 27, 2024 · There are more than 34,000 species of fish. They make up an incredibly diverse group of animals and range in size from as little as 8 millimeters (various species of minnows) …

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 …