fish

Table of Contents

References & Edit History Related Topics

Images & Videos

pumpkinseed sunfish

commercial fishing

opah (Lampris guttatus)

oyster toadfish

How do fish survive under icy lakes in winter?

Watch footage of the deepest fish ever caught on camera

For Students

Read Next

Malayan Leaf Frog - Megophrys nasuta

9 Animals That Look Like Leaves

sea turtle (reptile). Green turtle (Chelonia mydas) (C. mydas) off the Hawaii Islands, Pacific Islands. Green sea turtle, chelonian. Homepage blog 2011, science and technology, animal

5 Vertebrate Groups

animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.

Abundant Animals: The Most Numerous Organisms in the World

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

Sea horse or Seahorse, Hippocampus. Kingdom: Animalia Phylum: Chordata, Class: Actinopterygii, Order: Syngnathiformes, Family: Syngnathidae, Subfamily: Hippocampinae

9 Fish Named After Other Animals

Discover

Frowning little girl. Angry annoyed

Is Body Language Universal?

M17, the Swan Nebula, is a star-making cloud in the constellation Sagittarius.

How Do We Know How Far Away the Stars Are?

Alexandria, Egypt - September 12, 2014 - Wedding Bridesmaids Competition, reward for Best Bridesmaids for participation in competitions. Prize for victory

Who Votes for the Academy Awards?

An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society

The 10 Greatest Basketball Players of All Time

Calendar showing the month of February

Why Are There Only 28 Days in February?

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

fish: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

News •

Wild fish can tell humans apart when they dress differently, study finds • Feb. 19, 2025, 5:37 AM ET (The Guardian)

Photos and Videos

pumpkinseed sunfish

commercial fishing

opah (Lampris guttatus)

oyster toadfish

tropical two-wing flying fish

mosquitofish (Gambusia affinis)

How do fish survive under icy lakes in winter?

Watch footage of the deepest fish ever caught on camera

All about ray fins: Seahorses, trunkfish, and more

See how sea creatures have evolved different adaptations to both catch prey and avoid becoming prey

Examine commensalism among fish species such as shrimp, the neon goby, and moray eels

See All Videos and Images →

Topics

chondrichthyan eel lungfish shark agnathan salmon sturgeon ray tuna seahorse reptile insect bird mammal crustacean amphibian mollusk arachnid tetrapod animal social behaviour

Dig Deeper: More Articles That Discuss This Topic

Key People

David Starr Jordan

David Starr Jordan

American educator

Louis Agassiz

Louis Agassiz

Swiss-American scientist and educator

Eugenie Clark

Eugenie Clark

American ichthyologist

Rafinesque, Constantine Samuel

Constantine Samuel Rafinesque

Turkish naturalist

Étienne de La Ville-sur-Illon, comte de Lacépède

French naturalist and politician

Lev Simonovich Berg

Russian zoologist

Quiz

Mute swan with cygnet. (birds)

Match the Baby Animal to Its Mama Quiz

Lion (panthera leo)

Deadliest Animals Quiz

Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters

Animal Group Names

Lion (panthera leo)

Deadliest Animals Quiz

36 Questions from Britannica’s Most Popular Science Quizzes

Nine-Banded Armadillo.

A Is for Animal Quiz

Young chimpanzee dressed in a shirt and sweater vest, scratching his head thinking. (primates)

Wild Words from the Animal Kingdom Vocabulary Quiz

vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.

Animal Factoids

Dromedary camels (Camelus dromedarius). Animals, mammals.

Ultimate Animals Quiz

tropical two-wing flying fish (Exocoetus volitans). Beloniformes, ichthyology, fish plates, marine biology, tropical two wing flying fish, tropical two-wing flyingfish, tropical two wing flyingfish, tropical fish, fishes, animals.

Know Your Fish Quiz

List

Tiger shark (Galeocerdo cuvieri).

14 Questions About Aquatic Animals Answered

animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.

Abundant Animals: The Most Numerous Organisms in the World

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

sea turtle (reptile). Green turtle (Chelonia mydas) (C. mydas) off the Hawaii Islands, Pacific Islands. Green sea turtle, chelonian. Homepage blog 2011, science and technology, animal

5 Vertebrate Groups

Malayan Leaf Frog - Megophrys nasuta

9 Animals That Look Like Leaves

Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.

Abundant Animals: The Most Numerous Organisms in the World

Demystified

The fierce snake (also known as the inland taipan, western taipan and Oxyuranus microlepidotus) is the most venomous snake in the world.

How Deadly Are Australia’s Animals?