National Geographic Vintage Video Explains How Road Maps Were Made in 1940 2018-01-16T23:26:58.000000000+00:00 See how mapmakers painstakingly kept pace in an era when America’s road network was constantly expanding. Your Bright Idea Could Save the Biggest Reef on Earth 2018-01-16T20:26:48.000000000+00:00 Australia is calling on scientists from around the world to help rescue the Great Barrier Reef. What Wiped Out the Aztecs? Scientists Find New Clues. 2018-01-16T19:53:00.000000000+00:00 Salmonella could be partially to blame for a 16th century epidemic that killed millions. Octopus Chokes Dolphin to Death in First-Ever Discovery 2018-01-16T19:04:49.000000000+00:00 The young male, Gilligan, was in otherwise perfect condition, a new study says. This Woman Has Saved Thousands of Baby Bats 2018-01-16T12:00:00.000000000+00:00 She cares for dozens of orphans in her own home, swaddling them in blankets and hand feeding them. Human Emissions Made Ocean Heat Wave 53 Times More Likely 2018-01-16T05:01:00.000000000+00:00 Three 2016 marine heat waves that killed whales, birds, corals, and shellfish from Australia to Alaska were many times more likely thanks to climate change. Maybe Rats Aren't to Blame for the Black Death 2018-01-15T20:00:00.000000000+00:00 A provocative new study suggests that medieval plagues spread via fleas and lice on people. See Why Japanese Women Are Paying to Cry with a 'Handsome' Man 2018-01-15T18:03:05.000000000+00:00 In a society that values emotional suppression, see how this attractive man is being paid to make you weep. New 'Rainbow' Dinosaur May Have Sparkled Like a Hummingbird 2018-01-15T10:00:24.000000000+00:00 The duck-size animal found in China had iridescent plumage all over its head and chest. What If Martin Luther King Jr. Was Never Assassinated? 2018-01-15T02:30:13.000000000+00:00 In weighing the question, historians unravel how Americans construct King’s legacy—and how we conceive of civil rights in our own time.