Fish
Atlantic bluefin tuna
Thunnus thynnus
The Atlantic bluefin tuna is a giant, warm-bodied ocean fish of up to 679 kg (1,496 lb). Its size, migrations, spawning, diet and recovery from overfishing.
Animal group · 25 species
Fish
Animals that live in water and breathe with gills, from sharks and rays to salmon, seahorses and clownfish.
Species profiles
Fish
Atlantic salmon
Salmo salar
The Atlantic salmon hatches in cold rivers, grows up at sea and leaps home to spawn. Its life cycle, size, diet, ocean journeys, threats and current status.
Fish
Basking shark
Cetorhinus maximus
The basking shark is the second-largest fish, usually 7–8.5 m (23–28 ft) long. Facts on its plankton diet, migrations, summer sightings and Endangered status.
Fish
Bull shark
Carcharhinus leucas
The bull shark is a stocky coastal shark that can swim far up rivers into fresh water. Its size, diet, river nurseries, risk to people and Vulnerable status.
Fish
Electric eel
Electrophorus electricus
The electric eel is an air-breathing South American knifefish, not a true eel, that stuns prey with shocks of hundreds of volts. Size, habitat, diet and life.
Fish
European eel
Anguilla anguilla
The European eel grows up in rivers from Iceland to North Africa but is born in the Sargasso Sea. Its life cycle, size, diet, lifespan and why it is endangered.
Fish
Giant oceanic manta ray
Mobula birostris
The giant oceanic manta ray is the world's largest ray, up to about 7 m (23 ft) across. Its size, plankton diet, big brain, slow breeding and Endangered status.
Fish
Great hammerhead
Sphyrna mokarran
The great hammerhead is the biggest hammerhead shark, up to 6 m (20 ft) long. Its T-shaped head, stingray diet, warm-sea range and Critically Endangered status.
Fish
Great white shark
Carcharodon carcharias
The great white shark is the largest predatory fish, reaching about 6 m (20 ft). Its size, warm body, seal hunting, range, long life and Vulnerable status.
Fish
Green moray
Gymnothorax funebris
The green moray is the largest moray eel of the tropical Atlantic, up to 2.5 m long. Why it looks green, how it breathes and hunts, and how dangerous it is.
Fish
Greenland shark
Somniosus microcephalus
The Greenland shark is a slow, cold-water giant of the Arctic and North Atlantic that may live for centuries. Its size, diet, eye parasites, range and threats.
Fish
Humpback anglerfish
Melanocetus johnsonii
The humpback anglerfish is a small deep-sea fish with a glowing lure, a huge toothy mouth and tiny males. Its size, depth, diet, mating and first live filming.
Fish
Lined seahorse
Hippocampus erectus
The lined seahorse is a western Atlantic seahorse found from Nova Scotia to Brazil. Its size, armor, upright swimming, diet, courtship, pregnancy and threats.
Fish
Ocean sunfish
Mola mola
The ocean sunfish is a giant, disc-shaped bony fish with no true tail. Its size, deep dives for jellyfish and other prey, record egg count, range and threats.
Fish
Ocellaris clownfish
Amphiprion ocellaris
The ocellaris clownfish is an orange-and-white reef fish that lives inside sea anemones. Its size, range, diet, sex change, egg care and the real Nemo story.
Fish
Red lionfish
Pterois volitans
The red lionfish is a striped, venomous reef fish of the Indo-Pacific that now invades Atlantic and Caribbean reefs. Its size, hunting, breeding and impact.
Fish
Red-bellied piranha
Pygocentrus nattereri
The red-bellied piranha is a South American river fish with razor-sharp teeth, a varied diet and a fearsome but exaggerated reputation. Size, range and habits.
Fish
Shortfin mako
Isurus oxyrinchus
The shortfin mako is a fast, warm-bodied ocean shark found worldwide, usually 2–3.2 m long. Its speed, leaps, diet, slow breeding and Endangered status.
Fish
Southern stingray
Hypanus americanus
The southern stingray is a diamond-shaped ray of the warm western Atlantic. Its size, sand-burying habits, buried prey, tail barb, Stingray City and status.
Fish
Tiger shark
Galeocerdo cuvier
The tiger shark is a large striped shark of warm seas, usually 3.3–4.7 m long. Its turtle-cutting teeth, huge diet, long migrations, big litters and real risk.
Fish
West Indian Ocean coelacanth
Latimeria chalumnae
The coelacanth is a deep-water lobe-finned fish thought extinct for 66 million years until 1938. Size, caves, live birth, long life and why it is endangered.
Fish
Whale shark
Rhincodon typus
The whale shark is the largest fish, recorded at about 18.8 m (62 ft). Facts on its spots, plankton diet, warm-sea range, gatherings and Endangered status.
Fish
White-spotted puffer
Arothron hispidus
The white-spotted puffer is a common Indo-Pacific pufferfish that inflates with water, has a beak of fused teeth and carries tetrodotoxin. Size, diet and range.
