Seals & Sea Lions

Three Killer whales (Orca) swim along side researchers.

Listening for Clues About Sonar’s Effects on Marine Mammals

Researchers study the behavior of killer whales and how they react to sonar. Credit: C. Kyburg; Obtained under NMFS permit #14534 Many animals depend on their eyes to navigate, find food, locate mates, and...

Sea Lion Sickness

Both humans and sea lions get sick from eating fish and shellfish that have been feeding on harmful toxic algae. Studying the sick sea lions brings scientists closer to understanding and preventing harmful and...

The Wandering Fur Seal

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 decline, as less...

A Trip South to Antarctica’s Ross Sea

The Ross Sea, a 1.9 million square mile (3.6 million square km) stretch of ocean off the coast of Antarctica, has been nicknamed “ The Last Ocean .” And it’s not just a ploy...

Underwater Photography Contest from University of Miami’s Rosenstiel School

Every year the University of Miami's Rosenstiel School of Marine and Atmospheric Science hosts an underwater photography contest for amateur photographers. From playful marine mammals to hard-to-see invertebrates, these photos capture beautiful underwater scenes...

Ice-Loving Seals and the Loss of Sea Ice

In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal...
Hawaiian Monk Seal

Endangered Ocean Animals

The Endangered Species Act (ESA) was signed into law on December 28, 1973 by President Nixon. Over 2,000 species are currently on the ESA, and they are separated into "Threatened" and "Endangered" species. Endangered...
Aquatic Locomotion of a Sea Lion

How Do Sea Lions Swim?

Sea lions generate thrust, or forward propulsion, by bringing their fore-flippers together in big sweeping motions called “claps.” When a sea lion “claps,” it stretches its flippers out to the sides and sweeps them...
Hawaiian Monk Seal

Backbone of Biodiversity at Risk

The International Union for the Conservation of Nature ( IUCN ) maintains the Red List of Threatened Species , an inventory of the global conservation status of plants and animals. In a 2010 study...

Efforts to Protect the Critically Endangered Monk Seal

Monk seals -- the only completely tropical species of seal in the world -- are in trouble. Centuries of human exploitation and habitat destruction have caused the remaining populations of Mediterranean monk seals (...