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A Twelve-Step group for wild animals with people-food addictions? Don’t be responsible for getting a dolphin hooked on human handouts! This cartoon satire portrays a dolphin trying to break his addiction. Marine mammals around...
When a whale dies, the story has just begun. The massive carcass sinks to the...
How do right whales size up? North Atlantic Right whales ( Eubalaena glacialis...
The Encyclopedia of Life and Atlantic Public Media bring us another installment...

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The small vaquita ( Phocoena sinus ), a type of porpoise, usually only reaches lengths of 5 feet (1.5 meters). They are only found in the Northern part of the Gulf of California off the coast of Mexico, and their population size...
Three distinct types of killer whale, or orcas, can be found in the...
Researchers from the SOCAL-10 research partnership study the behavior of...

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Stretching up to 16.8 meters (55 feet) long and weighing up to 62 tons (70 tons), the North Atlantic right whale is one of...
A manatee swimming in shallow waters. The West Indian manatee is listed on the IUCN's Red List of Threatened Species as Vulnerable. More about mangroves can be found in our Mangroves featured story .
Monodontids, the group of whales that includes the belugas and narwhals swimming our ocean today, are emblematic symbols of the Arctic. However, their fossil record, although scarce, suggests that...
Florida Manatee ( Trichechus manatus latirostris ) swimming within a fresh water spring on Crystal River in Florida. Note the tree roots on the right of the frame which make up a portion of this...
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...
Phoenix swims in George’s Bank, off the coast of New England, on March 13, 2009. More about whales can be found in our Tale of a whale featured story .
This illustration shows how fishing lines attached to traps and buoys on the ocean floor present a potentially deadly hazard to North Atlantic right whales. Freeing entangled whales involves a...
Many animals depend on their eyes to navigate, find food, locate mates, and for other important activities. But marine mammals often rely on sound—sometimes far more than sight—for such critical...
The dolphins in this picture are spinner dolphins, ( Stenella longirostris ) named for how they spin in the air when they leap from the water. Spinner dolphins have four sub-species: the eastern...
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...
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...
Phoenix – our favorite North Atlantic Right Whale – was spotted feeding this week off the coast of New Hampshire! Researchers track these highly endangered whales (there are only about 450 of them...
Since 1987, researchers have been tracking Phoenix, one of the last North Atlantic right whales living today. It's estimated that there are fewer than 500 of these whales alive today. Read her story...
Since 1987, researchers have been tracking Phoenix. More about whales can be found in our Tale of a whale featured story .
Chilean and Smithsonian paleontologists study several fossil whale skeletons at Cerro Ballena, next to the Pan-American Highway in Atacama Region, Chile, in 2011. The fossils were discovered when the...
This illustration shows whalers of the early 1800s with their highly profitable catch.
Walruses use sea ice as platforms on which to nurse their young and launch their dives for clams and other bottom-dwellers. Each spring, walruses move northward to stay close to these perches as ice...
Sirenians , or seacows, are a group of marine mammals that include manatees and dugongs . Currently, only a single species of seacow is found anywhere in the world. However, the fossil record of...
When a whale dies, the story has just begun. The massive carcass sinks to the seafloor, where it provides food for a deep sea ecosystem on the otherwise mostly barren seafloor. There are several...
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