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America's Ten Most Endangered Rivers, 2011

Each year the organization American Rivers analyzes the condition of the nation's rivers to determine which are the most “endangered.” Threats to these rivers include dams and channelizations that…

America's Ten Most Endangered Rivers, 2012

Each year the organization American Rivers analyzes the condition of the nation's rivers to determine which are the most “endangered.” Threats to these rivers include dams and channelizations that…

America's Ten Most Endangered Rivers, 2013

Each year the organization American Rivers analyzes the condition of the nation's rivers to determine which are the most “endangered.” Threats to these rivers include dams and channelizations that…

Greenpeace

(Encyclopedia) Greenpeace, international organization that promotes environmental awareness and addresses environmental abuse through direct, nonviolent confrontations with governments and companies…

World Wildlife Fund

(Encyclopedia) World Wildlife Fund (WWF), international organization formed to raise money for conservation projects, est. 1961. The international organization, believing that its name no longer…

orangutan

(Encyclopedia) orangutanorangutanōrăngˈ&oobreve;tăn [key], an ape of the genus Pongo, found in rain forests of Borneo and Sumatra. Highly specialized for arboreal life, orangutans usually travel…

rhinoceros

(Encyclopedia) rhinoceros, massive hoofed mammal of Africa, India, and SE Asia, characterized by a snout with one or two horns. The rhinoceros family, along with the horse and tapir families, forms…

rafflesia

(Encyclopedia) rafflesiarafflesiarăflēˈzhə [key], any of a genus (Rafflesia) of parasitic plants native to the rain forests of the Malay peninsula, Sumatra, Borneo, and the Philippines. The plants…

Perseus, king of Macedon

(Encyclopedia) Perseus, c.212–166 b.c., last king of Macedon (179–168 b.c.), son and successor of Philip V. He intrigued against his younger brother, Demetrius, eventually bringing about the latter's…