Endangered species

A juvenile Kemp's ridley sea turtle emerges from the nest

Taking the Temperature of the Kemp's Ridley Sea Turtle

Kemp's ridley sea turtles ( Lepidochelys kempii ) often emerge from their nests during the day, which is a rare (and dangerous) thing for sea turtle hatchlings! Credit: Terry Ross ( Flickr ) The...
A Kemp's Ridley sea turtle is returned to the ocean.

Images: Conserving Endangered Kemp's Ridley Sea Turtles

Esther Horvath began documenting the efforts to protect Kemp’s Ridley sea turtles on the coasts of the United States three years ago. The work that goes into the recovery of this endangered species is...
A hippopotamus-like creature swims underwater

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

In the seagrass beds and kelp forests of the Oligocene-Miocene transition, nearly 32.5 to 10.5 million years ago, a four-legged, gnarly-toothed mammal roamed the Northern Pacific shores of what is now Japan, Canada and...
North Atlantic right whales and ocean-going vessels often cross paths.

Slow Down for Right Whales

Video of Slow Down For Right Whales By Hannah Waters Right whales in the North Atlantic are real city slickers. Rather than spend their time in the ocean’s wide-open range, they swim in warm...
Hawaiian Monk Seal

Struggling to Survive, But with a Chance to Thrive

Progress for Eight Endangered Ocean Creatures Video of Species in the Spotlight: Survive to Thrive By Ellen Spooner From snails to whales, approximately 2,270 species are listed as endangered or threatened globally under the...

Ocean Optimism Video - Slow Down For Right Whales

Whaling, beginning in the 1600s, killed thousands of North Atlantic right whales and their tendency to feed at the ocean’s surface within 50 miles of shore made them easy targets. They were hunted so...

Sea Turtles Return to the Sea

Sea turtles face many obstacles throughout their lives—net entanglement, light pollution, mistaking plastic for food—among the many that are caused by humans. Get a glimpse of what goes on behind-the-scenes of a sea turtle...
An American crocodile rests on a bed of seagrass.

American Crocodile

An American crocodile ( Crocodylus acutus ) resting on a bed of seagrass . These medium-sized crocodiles are most commonly found in mangrove -lined estuaries and saltwater lagoons between the southern coast of the...
A Galapagos tortoise munches on some greens.

Galapagos Tortoise

On the Galapagos Islands, William Dampier wrote excitedly of the giant tortoises he encountered: “I do believe there is no place in the world that is so plentifully stored with these animals….” This photo...
A school of bluefin tuna

The Great Pacific Migration of Bluefin Tuna

The Pacific bluefin tuna are one of three bluefin species, including the Atlantic bluefin ( Thunnus thynnus) and the Southern bluefin ( Thunnus maccoyii) . Credit: NOAA Shortly after their first birthday, Pacific bluefin...
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 (...
Giant Pacific Manta Ray, Roca Partida Sea Mount, Revillagigedos Islands, Mexico

Tagging and Tracking Animals Underwater

“Manta rays sometimes approach divers; an up-close encounter with such a huge, peaceful animal is unforgettable!” -- Nature's Best photographer, Deborah Smrekar. Equipment Used to Capture the Shot: Nikon D70; 12-24mm; 1/100 sec at...

Coral Reefs Changing Over Time

How do we know what coral reefs looked like hundreds of years ago? Often times, we are simply left wondering. Scientists can get an idea from naturalist recordings, but there are many unknowns and...