Environment
Citizens know best when it comes to animal protection
The US Endangered Species Act lets citizens nominate protected species 鈥� their selections have proved to be more endangered than government-nominated ones
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Earth
Changeable climate makes frogs vulnerable to disease
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Earth
Plastic ingredient makes fish court other species
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Earth
Lonesome George dies but his subspecies genes survive
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Environment
Leeches help track down endangered species
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Earth
Climate change will make conservation even pricier
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Earth
Seedy scientists are polluting Antarctica
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Environment
Fish hybridise themselves extinct in Alpine lakes
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Earth
Wandering albatross gets boost from rising winds
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Earth
2011 review: The year in environment
Explore the biggest environment stories of 2011, including: the Japanese megaquake, Earth's ticking time bombs, and the first field tests of geoengineering
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Earth
Humans killing at least 750 Bornean orang-utans a year
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Earth
Frog-killer disease was born in trade
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Environment
Exotic pets USA: Tigers, big bucks and organised crime
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Earth
Russian tigers threatened by dog disease
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