Earth
Birds swell the ranks of critically endangered species
191 bird species have been added to the IUCN red list, the roster of the world's most threatened species – habitat destruction is the main reason
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Earth
Invest in islands to save most species
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Earth
Migrating blue whales rediscover ‘forgotten’ waters
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Earth
World frog trade spreading killer diseases
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Earth
Brazil’s other big forest in dire straits
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Earth
Why more fertiliser harms plant diversity
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Earth
Bear tapping: A bile business
Features
Earth
Why freeing Willy was the wrong thing to do
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Earth
Great escapes: Eight emergency species rescues
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Earth
Road kill tally hints at wildlife health
Counting road kill may be an effective way to keep track of changes in local wildlife populations
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Earth
Green and mean: The downside of clean energy
Features
Earth
Fishing fleets squander half their catches
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Earth
Urban hunters do most harm to ape populations
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Earth
In defence of the Red List
Opinion