This is SCIENCE FRIDAY. I'm John Dankosky. Ira Flatow is away. After nearly three weeks, the shutdown is finally over. The Smithsonian is open, national parks have opened up their gates, and federal labs all over the country are turning on their lights. But not everyone is back to business as usual. Many scientists who were about to start their field season in Antarctica had their trips cancelled or postponed.
Now, for many of us, we first heard about the Ebola virus from the movie "Outbreak," Dustin Hoffman trying to contain an outbreak of an Ebola-like virus in a small California town. Well, in the 18 years since that movie came out, the Centers for Disease Control and Prevention has documented 18 known outbreaks of Ebola, with the most recent happening last fall in the Congo.
Does the pain we feel from rejection and loss have the same effect as physical pain? How does our brain respond to social interactions? In his new book Social: Why Our Brains Are Wired to Connect , social neuroscientist Matthew Lieberman describes the biology behind how our brains engage with the social world.
Writing in Science , researchers say a 1.8 million-year-old skull found in Dmanisi, Georgia indicates that early humans may have evolved from a single lineage rather than from multiple species. Anthropologist Adam Van Arsdale tells us what this could mean for the way we view human evolution.
If you've ever walked through the jungle, you'll know it can be surprisingly dark down on the forest floor. You see trees soaring up all around. You're creating a dense canopy overhead. And climbing toward that canopy, snaking up the trees are the vines.