Sharks & Rays

Sharks, rays and skates are fish. But unlike most fish, their skeletons are made of the same cartilage found in our human ears and noses, rather than bone. A diverse group, the elasmobranchs have over 300 species.

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Sharks

There are more than 500 species of sharks swimming in the world’s ocean. Yet when most people think of these cartilaginous...

Shark DNA Helps Catch Poachers

Dr. Mahmood Shivji explains how shark DNA is used as evidence to prosecute shark fin poachers . What is shark finning? Find out here .

Photo Sequence of Great White Shark Hunting

Great white sharks are athletic hunters, leaping completely out of the water as they attack prey from below. They have six highly refined senses : smell, hearing, touch, taste, sight, and electromagnetism. These senses,...

Shark Ancestors

Long before great white sharks appeared, much larger ancestors roamed the ocean. This giant ancient shark -- the Giant Megatooth ( Carcharodon megalodon ) -- was probably big enough to eat a whale.

X-Rays of Fish Reveal Diversity

Scientists in the Division of Fishes at the Smithsonian's National Museum of Natural History use X-ray imaging to study the complex bone structure and diversity of fish. This image gallery showcases X-ray images of...

Rethink the Shark

Sharks have a long and impressive lineage. Ancient sharks were cruising the ocean 400 million year ago- long before dinosaurs roamed on land. Relatives of the great white like the giant megatooth evolved more...

100,000,000 to 000,000,001: Rethink the Shark

Who should fear whom? Less than ten humans are killed by shark attacks. Yet millions of sharks are killed each year by humans. More about the great white shark can be found in our...

Are Sharks Scary?

What is scarier: sharks or extinction? This video from Save Our Seas puts whether we should fear sharks or they should fear us into perspective . Humans have killed killed off 95% of some...

Protecting Sharks: How Nets Hurt

Tom Peschak, a photojournalist with the Save Our Seas Foundation, describes the devastating effects shark nets have on ocean life along the South African coastline. The nets were installed to protect swimmers, but the...

Great White Shark

Sharks are much older than dinosaurs. Their ancestry dates back more than 400 million years, and they are one of evolution’s greatest success stories. These animals are uniquely adapted to their ocean environment with...
great white shark swims through the ocean

Great White Shark: One Species at a Time

In this episode of the Podcast of Life , students from Martha's Vineyard Regional High School in Massachusetts and La Salle Academy in Rhode Island question shark researcher Greg Skomal about a charismatic predator...

The Spin on Sharks

A scalloped hammerhead shark at Isla del Coco, Costa Rica. Credit: © Terry Goss 2008/Marine Photobank Starting this Sunday, August 1st, the fins will be circling on a television near you. Sunday kicks off...

Shark Fin Genetics

Dr. Demian Chapman of the Institute for Ocean Conservation Science at New York’s Stony Brook University explains how DNA extraction from shark fins can identify the species of shark and where the shark was...

Do Sharks Smell in Stereo?

A scalloped hammerhead shark at Isla del Coco, Costa Rica. Credit: © Terry Goss 2008/Marine Photobank Animals, on land and in the ocean, live in a 3-D world, and they depend on their sense...

Seafood for Thought

A neighborhood seafood market in the Testaccio area of Rome, Italy. Credit: Oceansart.us /Marine Photobank Sunday, November 21 marks World Fisheries Day , an annual occasion observed in many fishing communities around the world...
The dwarf lantern shark sits in a human hand.

5 Reasons to Revere, Not Fear, the Shark

Over the years, sharks have gotten a bad rap as bloodthirsty man-eaters. We challenge you to take a second look at these magnificent creatures and to fight fear with facts. Here are five reasons...

Image Gallery: Swimming with Sharks

For nearly 30 years, National Geographic photojournalist Brian Skerry has been swimming with and photographing sharks, including great whites, tigers, bulls, blacktips, and great hammerheads all around the world. In his first blog post...

Swimming With Sharks

Lying in water only a foot deep, I watched the shark meander lazily through the mangrove, already exuding the confidence inherent of the supreme creature within its domain. It was hot here in Bimini,...

Reef Sharks Repelled by People

Large numbers of grey reef sharks were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai . Credit: NOAA Reef sharks rarely get any...

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