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'Man flu' is real, so give the men in your life a break

Award-winning Nat Geo images capture magical moments in nature

Why net neutrality matters

New Jane Goodall documentary is beautiful, gut-wrenching, profound

America's last research chimps arrive at their new home in N. Georgia

Greenland sharks can live for more than 500 years

Cellphones are silencing the 'bird languages' of northern Turkey

Naples pizza joins UNESCO World Heritage list

California's wildfires are spawning 'fire' clouds

Cave system in Mexico is filled with creatures that devour methane

The North Atlantic right whale could be extinct in 20 years

In 2018, there will only be 4 days you can get into national parks for free