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A young Kemp's ridley sea turtle ( Lepidochelys kempii ) recovers at the Audubon Aquarium of the Americas, after the 2010 Gulf of Mexico oil spill. Turtles were cleaned and nursed back to health with...
A 2010 study of IUCN's Red List of Threatened Species found that one-fifth of the world's vertebrates (animals with backbones) are threatened with extinction, including this Hawaiian monk seal. The...
The Sundarbans National Park site in India was inscribed on the World Heritage List in 1987. The site, located in the Ganges delta, contains the world's largest mangrove forest and hosts a number of...
Two North Atlantic right whales ( Eubalaena glacialis ) swim at the surface of the water. Learn more about this species in the North Atlantic Right Whale section.
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 .
CREDIT: Wikimedia User “Fisherman” Because of consumer demand for sashimi (a fresh raw seafood dish), the fishing pressure on Atlantic bluefin tuna is extraordinarily high. The sale of a single...
by Caty Fairclough Sharks have been feared hunters ever since people first observed them swimming in the vast ocean. Yet today, sharks are declining rapidly on a global scale because humans have...
Largely due to overfishing, the Southern Bluefin Tuna is listed as " critically endangered ." If its population continues to decline, the species faces the possibility of extinction. It's not alone...
In the 1940s the short-tailed albatross population plummeted from tens of millions to such a small number that they were believed to be extinct. Their decline was due to hunting for their feathers...
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 ,...
The Papahānaumokuākea site in the United States was inscribed on the World Heritage List in 2010. The site is a vast isolated cluster of small low-lying islands and atolls with its surrounding ocean...
“Leatherback turtles are critically endangered, and this young hatchling is a symbol of hope for their future.” -- Nature's Best photographer, Jason Bradley . See more beautiful ocean photos in our...
Sarah Gotheil, from IUCN Global Marine Programme , snapped this photo in the course of her research into fragile species and ecosystems. A new project led by IUCN will unveil the mysteries of...
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...
Since 1987, researchers have been tracking the North Atlantic right whale named Phoenix. More about Phoenix can be found in the Tale of a Whale photo essay .
The long toothy rostrum or “saw” gives sawfish their common name. They use the saw to dig in the sand for crustaceans or to attack prey by vigorously slashing from side to side. This smalltooth...
This photograph was snapped as Phoenix swam in the Gulf of Maine in July 2008. More about the right whale can be found in our Tale of a Whale featured story .
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"...
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