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In the late 1990's, researchers at the Woods Hole Oceanographic Institution (WHOI) invented the D-Tag —a radio device that can be attached by suction cups to a whale's back. Using a tiny underwater microphone,...
Killer whales ( Orcinus orca ) are master hunters, using speed, camouflage, and...
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In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
How do we know where ocean animals swim day and night? Scientists are getting...

LATEST CATCH

A close up view of Phoenix and the rough patches of skin known as callosities that are found on all North Atlantic right whales . These callosities are inhabited by small amphipods called whale lice and they can be used to...
The polar bear ( Ursus maritimus ) is found in the Arctic and classified as...
Florida Manatee ( Trichechus manatus latirostris ) swimming within a fresh...

DIVE DEEPER

The International Union for the Conservation of Nature ( IUCN ) maintains the Red List of Threatened Species , an inventory...
In the episode of One Species at a Time , writer Karen Romano Young takes an icebreaker to Barrow, Alaska, to join in the festival of Naluqatak and learn about the intimate relationship between the...
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...
Lying on the ice with a few friends is not an unusual way to spend time for walruses, who tend to be sociable animals. Their groups can range from tens to thousands. Each individual herd has a...
The rough patches of skin known as callosities occur in unique patterns on all North Atlantic right whales and help researchers identify and track individual whales. This whale is named Phoenix. More...
A female bottlenose dolphin ( Tursiops sp. ) carries a sponge, which it uses as a tool to dig up prey from the seafloor. The only dolphins known to use sponges as tools this way are the female...
The bowhead whale has a massive, bow-shaped skull to break through thick Arctic ice, and more blubber than any other whale.
John Hildebrand discusses his research at the Scripps Whale Acoustic Lab on the FLIP platform. Learn more about how scientists are using bioacoustics to study and protect whales .
New England Aquarium researchers Dr. Moira Brown and Yan Guilbault conducting aerial surveys for North Atlantic right whales over the Roseway Basin, Canada. More about right whales can be found in...
The crabeater seal ( Lobodon carcinophaga ) is found on the ice of Antarctica, but surprisingly they don't eat crabs! The seals primarily eat krill, tiny crustaceans that play a large part in the...
During the winter and spring months, tagged fur seals migrate thousands of miles in open water. Scientists are watching this species closely in order to determine the mystery of its population...
Striped dolphins ( Stenella coeruleoalba ) observed in emulsified oil on April 29, 2010 in the Gulf of Mexico, a few days after the Deepwater Horizon oil spill. It's going to take years to understand...
An early scale model of North Atlantic right whale Phoenix indicates the location of scars on her tail from entanglements with fishing gear. More about the right whale can be found in our Tale of a...
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