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Pangolins, world's most trafficked mammal, finally get international protection

Carbon dioxide in Earth's atmosphere just reached a major milestone

Move to this small Canadian town, get a job and 2 acres

Bumble bee to receive helping hand from Endangered Species Act

How cougars can help save human lives

How Costa Rica's tapirs are key to carbon storage

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Photo blog

Why the biggest dinosaurs had the flashiest head gear

Why do leaves change color in autumn?

A living cathedral of trees is slowly growing in Italy

Planning a wedding? Skip the flowers and get puppy bouquets instead

Planet or not, you can't discount the extraordinary beauty of Pluto

Why is the sky so blue in autumn?

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Photo galleries

12 impressive Carnegie libraries still in use today

7 of the world's steepest streets

8 species moving to cooler waters

7 of the best World War I sites you can visit

10 of the scariest animal mouths out there

15 fascinating facts about otters

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