National Geographic Emerging Explorer Shivani Bhalla enlists locals to save lions.
A new satellite study shows traffic on the world's oceans quadrupled over two decades, outpacing the growth in trade.
Indigenous peoples may be key to combating climate change, author says.
New EPA ozone rules could prompt greater efforts to clean the nation's air.
Chile's gauchos turn the annual work of branding and castrating animals into a celebration of their way of life.
Gigantic black holes provide a new cosmic yardstick for charting far-off stars.
The latest trailer for the series shows outdated science, experts say, with featherless and oversize dinosaurs.
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