No, Koalas Aren't 'Functionally Extinct.' But They Are In Danger.
Amid a catastrophic fire season in Australia, what do we know about the fate of the koala?
Science
Raiders Of The Lost Crops: Scientists Race Against Time To Save Genetic Diversity
Elephants, snakes and crocodiles? Researchers around the globe faced risky situations to gather wild relatives of key foods. That genetic pool could be vital to helping crops adapt to climate change.
'There's No Good Dust': What Happens After Quartz Countertops Leave The Factory
Slabs of engineered quartz are cut to order in thousands of shops around the country that may not adequately protect workers from dangerous levels of the lung-damaging contaminant.
To Help Coral Reefs Come Back, Fake It (With Sound) 'Til Fish Make It
Researchers have found that by playing the sounds of healthy reefs in places where coral has died, fish are more readily attracted back, and help speed the reef's recovery.
MIT's Breakthrough In Propulsion Of Intra-Intestinal Micro-Muscular Agglomerations
MIT students Phoebe Li and Amber VanHemel broke the World Record for longest the hot dog toss (and catch). Hear how the sausage got made from NPR's Lulu Garcia-Navarro.
Huge Amazon Wildfires Endanger Our History As Well As Our Air, Archaeologists Say
Cristiana Barreto says deforestation threatens to erase evidence of huge, dispersed civilizations, including rock art, ceremonial earthworks and waterways.
A 'Mole' Isn't Digging Mars: NASA Engineers Are Trying To Find Out Why
After the InSight lander had trouble drilling a sophisticated thermometer into the Martian surface, a Plan B also didn't work, and the instrument ended up backing itself out of the ground.
Study: For HIV-Infected Babies, Treatment Should Start At Birth
Every day, as many as 500 babies in sub-Saharan Africa are born with HIV. A study out of Botswana finds that if newborns are given treatment right away, the virus becomes almost undetectable.
A Single Dose Of Ketamine Might Help Heavy Drinkers, Study Finds
Participants in the U.K. experimental study dramatically reduced their average alcohol intake for months after the initial dose. Ketamine has also been used to treat severe depression.
Greenhouse Gas Emissions Are Still Rising, U.N. Report Says
A United Nations report warns that greenhouse gas emissions from the world's largest economies must drop dramatically in the next decade to avoid the most catastrophic effects of climate change.