Articles related to sharks
Prehistoric Sharks and Shark Evolution - Dinosaurs - About.com
If you went back in time and looked at the first, unremarkable prehistoric sharks of the Ordovician period--about 420 million years ago--you might never guess ...
Sharks - Information About Sharks - Marine Life - About.com
Sharks are some of the most popular, most-feared, and misunderstood creatures in the ocean. Learn more about sharks, including types of sharks, information ...
List of Shark Species and Facts - Marine Life - About.com
Sharks are cartilaginous fish in the Class Elasmobranchii. There are about 400 species of sharks. Below are some of these species, with facts about each.
Hawaii's Sharks - Common Species - Hawaii Travel - About.com
A guide to the many species of sharks that are found in the waters of Hawaii.
10 Interesting Facts About Sharks - Marine Life - About.com
There are several hundred species of sharks, ranging in size from less than ten inches to over 50 feet. These amazing animals have a fierce reputation, but ...
Sharks - Questions and Answers About Sharks - Marine Life
Learn about sharks through this round-up of shark questions and answers, including how fast can a shark swim, what is the largest shark, and more.
Prehistoric Shark Pictures - Dinosaurs - About.com
Pictures, illustrations and photographs of prehistoric sharks, ranging from Cladoselache to Xenacanthus.
10 Different Types of Hammerhead Sharks - Marine Life - About.com
Hammerhead sharks are unmistakable - they have a unique hammer- or shovel- shaped head that makes them easily recognizable from other sharks.
How Do Sharks Sleep? - Marine Life - About.com
Sharks need to keep water moving over their gills so that they receive oxygen. So that seems to mean that they need to keep moving all the time...or do they?
Megalodon - 10 Facts About the World's Biggest Shark - Dinosaurs
Megalodon was the biggest prehistoric shark that ever lived. Here are 10 facts you may or may not have known about this enormous predator.