Fish are an incredibly diverse group of animals. Read these articles to find out about all kinds of unique and different fish.
  • Freshwater Fish
  • Saltwater Fish
  • Other Fish
  • Sharks


The grunion, or California grunion, is a small ocean food fish. The slim, light-colored body, five to eight inches (12.5 to 20 cm) long, has a silvery stripe down each side from gills to tail.

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If your ears picked up on a 40-hertz signal, you might wonder what the annoying sound was all about. But if you're a shark and you hear this "yummy hum," it might mean it's dinner time.

The Ultimate Most Dangerous Sharks Quiz

Get the facts about shark attacks and you may feel less anxious in the water. Take this quiz to learn about the most dangerous sharks.

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