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

Overfishing is leading to an abundance of less desirable species like jellyfish.

Peanut Butter and Jellyfish

Cut of Atlantic Salmon on a Plate

Love Salmon? Listen Up.

Home is where the hull is: Since the dawn of seafaring, humankind has had to deal with pesky creatures, such as barnacles, that “foul” ship hulls and boat propellers like this one.

No Fouling Around

Seven of the newly discovered Starksia blennies, small fish with elongated bodies

Scientists Discover Seven New Species of Fish

Smithsonian scientist who discovered new species in her laboratory

Five Questions for Carole Baldwin

Photo of the head of a leafy seadragon

Devoted Dads: From Seahorses to Sea Spiders

A submersible explores the deep reefs off of Curacao in the Caribbean.

Summer in a Sub: DROP Down to Discovery

Orange roughy and various marine species, bycatch, on the deck of a research trawler

Rough Going for Orange Roughy

An underwater photo of Southern Bluefin Tuna swimming above a fish farm net.

Tunas and Marlins Officially Classified as Threatened

A photo of a sea toad specimen.

A Sub and a Sea Toad

Wooden painted fish on a school fence.

Chinook Salmon: One Species at a Time

A screenshot from the video showing a Palauan primitive cave eel.

Video of the Palauan primitive cave eel (Protanguilla palau)

Banner Credit

Russell Gilbert, flickr