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The biggest source of air pollution near you might be coming from farms

Rare bearded vulture spotted in U.K. for the first time

Newborn Mexican gray wolf pup is an important addition to this critically endangered species

Ants remember their position when they need to form rafts

Endangered parakeets gain foothold in cloud forest with newly protected habitat

5 fascinating facts about bison

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Photo blog

You know you want to take a dip in these crystal-clear waters

Why these old-growth forests shouldn't be on the chopping block

The ethics of cuteness: A closer look at 12 trendy cat mutations

These strange baby animals redefine cuteness

His art isn't done until he lights it on fire

5 ancient civilizations that were destroyed by climate change

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Photo galleries

8 lakes and rivers that are drying up

9 surprising pollinator species that aren't bees

9 unforgettable urban waterfalls

10 mountain hikes for city-dwellers

9 of North America's most fascinating kettle lakes

9 famous rocks from around the world

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