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Killer whales ( Orcinus orca ) are master hunters, using speed, camouflage, and a variety of techniques to capture their prey. See how a different predator - the great white shark - finds its...
How do we know where ocean animals swim day and night? Scientists are getting...
Whales swimming in the ocean are never really alone. Even if one swims by...

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Fargo, the dog pictured here, is not just having a relaxing day at sea. He is helping researchers at the New England Aquarium in Boston detect scat (or poop) from North Atlantic right whales . The dogs find about four times more...
West Indian Manatees, Trichechus manatus , are found in warm, shallow...

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The International Union for the Conservation of Nature ( IUCN ) maintains the Red List of Threatened Species , an inventory...

The Ocean Blog

Smithsonian squid expert Dr. Clyde Roper collaborated with National Geographic to attach this Crittercam to the head of a sperm whale, hoping to get footage of the whale’s favorite prey—giant squid...
A right whale opens its mouth wide, revealing huge plates of baleen hanging from its upper jaw. There are between 200 and 270 baleen plates on each side of a right whale's upper jaw. They work like a...
A drawing of Phoenix from the Right Whale Catalog documents her callosity pattern and other identifying marks. More about whales can be found in our Tale of a whale featured story .
Hoping to hear bowhead whales , NOAA marine mammal scientist Sue Moore listens to real-time sounds from an underwater hydrophone.
The evolution of whales represents one of the great stories in macroevolution. It's a narrative that has mostly benefitted from an extraordinary series of fossils recovered from rocks around the...
Humpback whales ( Megaptera novaengliae ) can be found in Antarctic waters during the spring and summer in the Southern hemisphere, where they gorge on their main food source: tiny krill. How do they...
Three distinct types of killer whale, or orcas, can be found in the Antarctic, each with a different habitat and diet preference. One type of orca preys almost exclusively on the Antarctic minke...
The ocean is home to many moms of all shapes and sizes: from charismatic polar bears and dolphins to small fishes and shrimps and more. Learn about some of the diverse parenting habits of marine moms...
The Baird's beaked whale is a species of toothed whale. Most toothed whales (which also include dolphins, killer whales and porpoises) live in social groups called pods. Read more about toothed...
After a few long days of hard work on the island, we were finally able to excavate and remove , not just one, but two skeletons of an early "toothed" baleen whale from the rocks near the Carmanah...
Whale baleen, the stiff bristly mouthparts that sieve small prey from the water, was strong yet flexible, and was used to provide structure in many human products, including umbrellas, corsets, and...
An adult giant squid struggles for survival in an encounter with a sperm whale - its only known predator. The whale will probably overpower and eat the squid. More about the giant squid can be found...
The whales that we see in today's world can broadly be split into two groups: those with teeth (odontocetes), and those that have baleen (mysticetes) instead of teeth. These two groups share a common...
West Indian Manatees, Trichechus manatus , are found in warm, shallow coastal ecosystems along the southeastern North America and northeastern South America. They graze plants in mangrove ecosystems...
This is North Atlantic right whale #3333 who was spotted with fishing gear trailing from his mouth during an aerial survey off the coast of Georgia on January 29, 2008. Entanglement is one of the...
A giant squid engages in a struggle for survival with a sperm whale. Giant squid beaks and other undigested pieces of giant squid have been found in the stomachs of sperm whales . More about the...
Dugongs , along with manatees , make up a group of marine mammals called sirenians or seacows . In the modern world, only one species of seacow is found in any one place in the world. However, the...
Researchers frequently track North Atlantic right whales from ships or from the air. This video of Phoenix (left) was captured in March 2009 on George’s Shoal, east of Chatham, Mass. Learn more about...
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