Fish

Cuttlefish are calculating hunters, and need depth perception to efficiently snare their prey.

Scientists Velcroed 3-D Glasses to Cuttlefish to Study Their Depth Perception

The results of the eye-popping study suggest cuttlefish see the world in surprisingly human ways

Laboratory experiments suggest the tooth-like scales of the puffadder shyshark can be degraded by acidifying oceans

Acidifying Oceans Could Corrode the Tooth-Like Scales on Shark Skin

A laboratory experiment hints at another sobering consequence of acid-heavy ocean waters on marine life

The garum factory found near Ashkelon in Israel

Ancient Roman Fish Sauce Factory Unearthed in Israel

The site produced the incredibly popular fish gut-based condiment garum—a process so stinky it had to take place far from town

Bioluminescent "sea fireflies," a species of ostracod crustacean, covering the rocks on the coast of Okayama, Japan.

How Studying Bioluminescent Creatures Is Transforming Medical Science

The natural light of insects and sea creatures can help doctors illuminate H.I.V. and even kill cancer cells

When the scientists played the sounds of healthy coral ecosystems at damaged reefs, 50 percent more species showed up than at quiet sites.

One Way to Lure Fish Back to Damaged Reefs? Play the Sounds of Living Coral

The find is fascinating, but can’t save these marine ecosystems by itself

The tooth-filled mouth of a lamprey. These bloodsucking fish have managed to survive for hundreds of millions of years.

Why the World Needs Bloodsucking Creatures

The ecological benefits of animals like leeches, ticks and vampire bats are the focus of a new exhibition at the Royal Ontario Museum

The Paris Aquarium rescues unwanted goldfish and gives them a home.

The Paris Aquarium Is Giving Unwanted Goldfish a Second Chance

The sanctuary is home to 1,000 fish and counting

Lucy Hughes holds a piece of MarinaTex.

This Bioplastic Made From Fish Scales Just Won the James Dyson Award

British product designer Lucy Hughes has invented a biodegradable plastic made from fish offcuts

A two-month-old filefish collected in the survey surrounded by plastic bits.

Newly Identified Fish Nurseries Are Choked With Plastic

Larval fish congregate in surface slicks, which contain plankton—and 126 times more plastic than surrounding waters

These Newly Discovered Shrimp Call a Whale Shark's Mouth Home

Found in a whale shark off Okinawa, hundred of amphipods were living it up in the giant fish's gills

By collecting images and GPS data from citizen divers, scientists can get a better sense of the health of the entire Great Barrier Reef.

Massive Citizen Science Effort Seeks to Survey the Entire Great Barrier Reef

Only about 1,000 of 3,000 individual reefs have been documented, but the Great Reef Census hopes to fill in the gaps

A humpback whale, not involved in the study, shows off its pecs.

Watch Humpback Whales Scoop Fish Into Their Mouths Using Their Fins

With the help of a drone and other new technologies, researchers were able to study the whales from a bird’s-eye view

A northern snakehead caught in the Potomac River in 2004.

An Invasive Fish That Can Breathe and Move on Land Has Been Found in Georgia

Officials have issued blunt instructions to anyone who spots a northern snakehead: ‘Kill it immediately’

Three green sea turtles, Chelonia mydas, on a coral reef, Heron Island, Great Barrier Reef, Australia.

Coral Reefs Face the Dual Threats of Ocean Acidification and Erosion

As coral tissues die off, the exposed calcified skeleton becomes vulnerable to organisms that eat away at the dying reefs

Fishless filets are on the rise.

Move Over Fake Meat, It's Time for Veggie Seafood

Here are six companies bringing you animal-free fish products, from tomato-based sushi to "Fysh Sauce"

Electrophorus voltai, a newly discovered species of electric eel, pictured swimming in the Xingu River, a southern tributary of the Amazon.

Smithsonian Researchers Triple the Number of Electric Eel Species, Including One With Record-Setting Shock Ability

It’s literally shocking news

Fishermen in Milwaukee during the salmon run.

Milwaukee’s Secret Salmon Runs

In the spring and fall, watch huge salmon fly up two rivers in Milwaukee to spawn with the city as a backdrop

Here's How That Internet-Famous 'Fish Tube' Works

The cheap, efficient pneumatic tubes may be a good solution for helping salmon and other migratory species move past dams

Little, Transparent Fish Show Sleep Is at Least 450 Million Years Old

Imaging of sleeping zebrafish reveal their pattern of Zzz's is similar to that of mammals and other animals, meaning snoozing has been around a long time

The coffinfish can inflate its body volume by up to 30 percent upon inhaling a significant quantity of water

Coffinfish Can Hold Their Breath for Up to Four Minutes on the Ocean Floor

This evolutionary adaptation may help the deep-sea dwellers conserve energy or defend against predators

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