Colorful fish swim in blue water.

Fish

an adult and baby coelacanth specimens on display

Meet the Coelacanth

Learn about the fish that was once thought to be extinct.

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Featured Content

A Honduran small-scale fisherman on a boat setting out to fish.

Clever Measures Track Fishing Pressures

A blue parrotfish hides among coral.

Tough Teeth and Parrotfish Poop

On coral reefs fish are important links in the food chain that sustains higher-order predators (including humans) and keeps everything in balance.

Fish Get Risky Around Oil

A tornado of sardines swirls around diver and photographer Erwin Poliakoff in the Philippines.

Why the Littlest Fish Matter a Whole Lot

A school of akule (Hawaiian for bigeye scad) explode into a camera's frame.

Following the Akule

Are You An Educator?

At Smithsonian Ocean, we have lesson plans, activities, and resources to help you engage your students in the wonders of our oceans.

see all lesson plans see fish lesson plans

Fish Articles

a heart in a petri dish

Dispatches from the Gulf: Centers of Innovation

Fish swim underwater amidst mangrove roots at Bocas del Toro, Panama.

On the Trail of DNA in the Ocean

A Honduran small-scale fisherman on a boat setting out to fish.

Clever Measures Track Fishing Pressures

Un pescador de una pesquería a pequeña escala de Honduras se embarca en una excursión de pesca.

Medidas Inteligentes Rastrea las Presiones de Pesca

A female napoleon wrasse swims by a reef

An App Helps Scientists Combat Illegal Fish Trade

an adult and baby coelacanth specimens on display

Coelacanth

an elephant seal with a tracker

Citizens of the High Seas

A brown and white dragon moray eel with its mouth open.

Surprising Results Upon Reexamining the Curious Jaw of the Moray Eel

A small gray fish with two orange stripes, hides in between corals.

Tiny Fishes Fuel Coral Reefs

Colorful fish swimming in a coral tank.

Wrasse and Anthias Fish Cam

The ultra-black Pacific blackdragon forms a circular shape with its body.

Scientists Find First Ultra-Black Color in Deep-Sea Fishes

A large black grouper swims amidst coral.

Protecting the Most Vulnerable Fish After an Oil Spill

Banner Credit

Russell Gilbert, flickr