It has some of the highest cliffs in Europe, which have large colonies of rare and endangered species of birds.

UNESCO: World Heritage

Home to orangutans, pygmy elephants and clouded leopards, this northeast region in the state of Sabah is a hotspot for rare and endangered species.

BBC: Malaysian Borneo on a single circuit

The region contains a number of lakes, mires, meadows, swamp and lake complexes with peculiar flora and fauna, including a number of rare and endangered species.

UNESCO: EDUCATION

Etosha is home to 114 mammal species -- several of which are rare and endangered -- and 380 species of birds.

BBC: Caring for wildlife, Namibian-style

One penultimate index of health, or lack thereof, is the IUCN Red List, which elucidates those many species that are vulnerable, rare and endangered throughout the world.

FORBES: Cambodia��s Paradise

These include the Hoedspruit Endangered Species Center, which cares for and breeds cheetahs and other rare and endangered animals.

FORBES: Bush Baby

Similar satellite technology was used on the Pacific species of walruses, not considered endangered, but never on the Atlantic species, which is considered rare and threatened.

FORBES: For Walrus Wary Russian Oil Drillers, WWF Turns To Space

To further complicate matters, the Endangered Species Act requires the Corps to release enough water to maintain dwindling populations of rare mussels and sturgeon in the lower reaches of the two rivers.

ECONOMIST: Georgia opens a northern front in its battle with drought