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Fish
Image: BBC

Fish

First thing you need to know about fish? From the scientific classification angle, there's really no such group, or clade.

The animals we call fish — those with backbones and scales that live in the water — don't all have a common ancestor. Take a closer look at cartilaginous, ray-finned, and lobe-finned fish, as well as lampreys.

BBC
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The Fish Game

The Fish Game

In this game, you fish to support your family. Try to catch as many as possible without depleting future populations. More...

Game
The Cloud Institute
Fish FAQ

Fish FAQ

How can scientists determine a fish's age? Do fish chew their food? Check out this bouillabaisse of fascinating facts on fish, from sharks to shellfish and other marine life. More...

Article
NOAA
Wonderful Cichlids

Wonderful Cichlids

In less time than it took apes to evolve into 3 species, cichlids have evolved into thousands of fish species. Take a closer look at them — and find out why their shell is their castle. More...

Article
EARTH A New Wild/PBS
Corwin’s Quest: Mangrove Mudskipper

Corwin’s Quest: Mangrove Mudskipper

Conservationist Jeff Corwin shows adaptations the mudskipper fish has made for living on land in a mangrove: eyes on top of its head, water-filled gills, and limb-like fins to scoot around. More...

Video
Animal Planet
Scientist Profile: Ocean Scientist

Scientist Profile: Ocean Scientist

Meet Dick Yue, inventor of the Robotuna — a mechanical fish that moves through the water just like the real thing. He hopes to find new, efficient ways to get boats, ships, and submarines moving. More...

Profile
DragonflyTV/PBS
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A “Fish Facebook”

A “Fish Facebook”

Take a look at scientists who are tagging ocean wanderers to create a "Fish Facebook" — from tuna to sharks — all so they can create better Marine Protected Areas (MPAs). More...

Article
EARTH A New Wild/PBS
Anatomy of the Coelacanth

Anatomy of the Coelacanth

Scientists thought the Coelacanth had died out with the dinosaurs. Then it turned up in a fisherman's net. Explore its crazy anatomy here. More...

Interactive
NOVA/PBS
Dr. Eugenie Clark

Dr. Eugenie Clark

Meet Dr. Clark, who's been studying fish her entire life. Hear about some of the amazing adventures she's had at the Mote Marine Laboratory and what she likes most about being a scientist. More...

Profile
Mote Marine
Fish Olympics

Fish Olympics

Find out which fish species would win if gold medals were given out for speed, eating, hiding, and distance. More...

Interactive
National Museums Liverpool
Fish: An Interactive Learning Movie

Fish: An Interactive Learning Movie

From size and characteristics to species and senses, you'll find all the details in this fishy animated presentation. More...

Video
KidsKnowIt.com
Here Fishy Fishy

Here Fishy Fishy

Fish have been around for 500 million years. They started as organisms without jaws and have branched into jawless, cartilaginous, and bony fish. More...

Article
Biology4Kids.com
How Fish Evolved to Climb Waterfalls with Their Mouths

How Fish Evolved to Climb Waterfalls with Their Mouths

Somewhere along its evolutionary path, this fish repurposed its feeding behavior for another. Find out what it does, and why it tells us about adaption. More...

Video
National Geographic
Megafishes Photo Gallery

Megafishes Photo Gallery

Fish twice the size of humans? Yep, it's no fish tale. Check out these "megafish," including one 10 feet long and 400+ pounds and another that's 152 years old! More...

Images
National Geographic
Science Stars Are on Display at the White House

Science Stars Are on Display at the White House

Meet teen scientists honored at the 4th White House Science Fair. Their research includes how screen time affects sleep and changed radiation levels in salmon after the 2011 nuclear disaster in Japan. More...

Profile
Science News for Students
The Living Planet: Fish Types

The Living Planet: Fish Types

Sharks may still rule the ocean in the minds of many, but bony fish have numerous advantages over their cartilaginous predators. More...

Video
BBC
Thrill of  the Catch

Thrill of the Catch

Create your own fish and try to grow it to 20lbs. Or pick a boat and see how many fish you can catch. More...

Game
Discovery
What Factors Affect Respiration and Gills?

What Factors Affect Respiration and Gills?

Goldfish are able to breathe underwater because they have gills. Create an experiment to measure how temperature, salinity, and other factors change their rate of respiration. More...

Activity
Science Buddies
What the Fish?

What the Fish?

Meet the "fish nerds" from the Field Museum who create the podcast (available on iTunes) that explores the biodiversity of shallow ponds, the ocean's depths, and everything in between. More...

Video
Field Museum

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