Fish

A similar species of Irukandji jellyfish, but with the tentacles (and a fishy lunch inside).

A New, Potentially Deadly Species of Jellyfish Was Discovered Floating Around Australia

The new species' sting can cause Irukandji syndrome, which sometimes leads to stroke and heart failure

A European eel (not the world's oldest, however).

RIP, World’s Oldest Eel

The eel, 155, passed away in a Swedish well late last week

A critically endangered European eel.

Eels Are Victims of Noise Pollution

Critically endangered European eels get distracted by man-made noise, making them more likely to get eaten by a predator

Fun fact: Most of the fish oil harvested from the sea goes to fish farms.

Fish Oil Could (One Day) Come From Plants

A field trial of genetically modified oilseed plants that can make fish oil hopes to help fish farming become more sustainable

Fish Oil Could Be a Modern-Day Snake Oil

The premise that fish oil is good for your heart is based on questionable data

This Deep-Sea Octopus Tended Her Eggs For More Than Four Years

It appears that the octopus mom also largely refrained from eating over those 53 months

Sardines Take 400 Times Less Fuel To Catch Than Shrimp

Your shrimp cocktail is secretly a major waste of fossil fuel

Salmon in a fish farm in Norway

This New Carbon Capture Project Turns Carbon Dioxide Into Fish Food

A Norwegian project hopes to reduce both pollution and lessen pressure on krill stocks

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An Abandoned Mall in Bangkok Has Turned into a Gigantic Fish Habitat

Though if it weren't for the fish, the mall would be overrun with mosquitoes

Is this the face of a cold-blooded man-eater?

14 Fun Facts About Piranhas

They're not cute and cuddly, but they may be misunderstood, and scientists are rewriting the fish’s fearsome stereotype

A group of Chilean devil rays basking in shallow waters around an underwater mountain near the Azores.

Chilean Devil Rays Found to Be Among the Deepest-Diving Animals in the Ocean

The surface-dwelling marine creatures regularly dive more than one mile deep, scientists find

Fish Exposed to Oil From BP Gulf Spill Swim Half as Fast

This is the second study in several months suggesting that the BP Deepwater Horizon spill has had lasting harmful effects on fish

A fishing spider enjoying a tasty platyfish that it snatched from a garden pond in Australia.

Spiders All Over the World Have a Taste for Fish

Eight-legged predators probably prey on vertebrates much more often than arachnologists previously assumed

President Obama Could Create the World's Largest Marine Sanctuary

The protected zone would make a large area in the Pacific Ocean off limits to fishing and other environmentally harmful human activities

A Japanese sea catfish, enjoying the light.

This Catfish's Whiskers Are Like Ultra-Sensitive pH Strips

Japanese sea catfish seek out worms in the pitch dark by detecting minute changes in water chemistry caused by their prey’s breathing

The American paddlefish, which makes spawning migrations up the Yellowstone and Missouri Rivers.

This Weekend, Celebrate the World's Weird and Wonderful Migratory Fishes

The first annual World Migratory Fish Day is making a splash with hundreds of outdoor, fish-centric events

Sober Fish Willingly Play Follow-the-Leader With Drunk Fish

Do not try these experiments at home

Young Fish Exposed to Deepwater Horizon Oil Develop Defects in Their Hearts

The impacts extend to economically valuable species such as tuna and amberjack

Japan Plans to Halve the Number of Young Bluefin Tuna It Catches

Sushi might get more expensive, but tuna populations need the break

This Little Minnow Will Be the First Fish Ever Taken Off the Endangered Species List

Thanks to successful conservation efforts, the Oregon chub has successfully rebounded from near-extinction

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