Because we had better food, our brains grew bigger than those of our primate cousins, scientists say. Early humans cooked, which makes meat and veggies more digestible and nutrients more available to the body. Plus, there was all that chatting and chewing around the campfire.
Whales are among the great communicators of the animal world. They produce all sorts of sounds: squeaks, whistles and even epic arias worthy of an opera house. But in the mid-1980s, one beluga whale did something that had never been documented before: It imitated human speech.
Adolescent brains have gotten a bad rap, according to neuroscientists. It's true that teenage brains can be impulsive, scientists reported at the Society for Neuroscience meeting in New Orleans. But adolescent brains are also vulnerable, dynamic and highly responsive to positive feedback.
Amateur astronomers recently discovered a planet with four suns. The discovery itself is remarkable — but all the more so because it was made by amateurs. David Greene talks with Arfon Smith from the Adler Planetarium in Chicago about the discovery and the growing contributions that so-called "armchair" astronomers are making to the field.
When you give to WAMU, your tax-deductible membership gift helps make possible award-winning programs such as Morning Edition, All Things Considered, The Diane Rehm Show, The Kojo Nnamdi Show, and other favorites.