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

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 red lionfish

Lionfish on the Loose

"Ocean sunfish" by Mark Harris

Chasing a Basking Shark

A screenshot from the video showing a school of swimming fish.

Bite Size: Bull Shark Predation of Tarpon

Gulf of Mexico Research Initiative researchers collect samples from a Pensacola Beach with oil layers in the sand. They use genomics to track how the communities of microbes change as they digest different components of oil after a spill.

Three Ways You Can Use Genomics to Study Oil Spill Impacts

Meet the Tiny Bacteria That Give Anglerfishes Their Spooky Glow

A lionfish dish is laid out and ready to eat.

Swap Your Turkey for a “Turkeyfish” This Thanksgiving

King scallop in Lamlash Bay reserve

A lesson learned twice: The Story of Scotland’s Marine Protected Areas

Hawaiian monk seals are among the wildlife found within the Papahānaumokuākea World Heritage Site.

Struggling to Survive, But with a Chance to Thrive

A school of mahi mahi.

From Larvae to Adults – Finding Impacts of an Oil Spill on Mahi-Mahi

Scientist tagging wild Mahi Mahi.

Satellite Tagging Wild Mahi Mahi with RECOVER

Tagged Mahi Mahi swimming in clear water.

Satellite Tagging Captive Mahi Mahi

Jeweler Palovi Baezar with her first set of lionfish earrings, which she made in the summer of 2013.

When Life Gives You Lionfish…

Banner Credit

Russell Gilbert, flickr