Earth Matters

Check out the most spectacular outdoor photos of the year

Galaxies are being killed throughout the universe. What's killing them?

5 fast facts about sloths

Why are roly polies also called wood shrimp?

Mysterious stranding kills dozens of false killer whales

Ringling Bros. to shut down in May

Endangered West Coast oysters could thrive due to climate change

Obama's national monuments are a big deal

4 theories about how the moon formed

Watch the first video of the rare ruby sea dragon

10 things you didn't know about dormice

Woodland creatures build snowmen, toss snowballs in photographer's winter playground

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