Fish

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

Learn More / Page 4

You don't reign supreme over the marine food chain without acute senses that can smell blood or hear injured prey from great distances. And sometimes a "sixth sense" doesn't hurt either.

By Molly Edmonds

Have you ever been so hungry that you could eat anything? How about a hubcap? Or maybe a suit of armor? If you said "yes," you might have something in common with the second deadliest shark.

By Molly Edmonds

Sharks are an intelligent and sometimes dangerous species of saltwater fish. Learn more about these often feared, often misunderstood creatures of the deep in this gallery.

Advertisement

The oldest shark fossils date from more than 300 million years ago, before the dinosaurs. A few species have kept the same physical characteristics for more than 150 million years. How have they survived so well?

By Tom Harris