Fish have been an important natural resource for humans since prehistoric times, especially as food. Commercial and subsistence fishers harvest fish in wild fisheries or farm them in ponds …

Sep 21, 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 …

Jan 3, 2023 · Instead, there are 3 main classes, groups, or types of fish: bony fish (Osteichthyes), jawless fish (Agnatha), and cartilaginous fish (Chondrichthyes). Fish are the most diverse …

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 …

Explore facts and photos about fish found in and around the United States. Learn about their range, habitat, diet, life history, and more.

Lobster (spiny) M Mackerel (Atlantic, jack, chub) Mahi Mahi (Dolphin-fish) Marlin Mullet O Orange Roughy Oysters (cooked) P Perch (Freshwater) Perch (Ocean) Pickerel Plaice Pollock …

The meaning of FISH is an aquatic animal —usually used in combination. How to use fish in a sentence.

Learn everything you need to know about aquatic animals with the latest fish features, news and articles from Live Science.