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.
A Vermont college's decision to slaughter two oxen after one suffered an injury has sparked some serious debate. The college cited sustainability as one of its reasons, but some students and animal rights advocates say it's just not right to serve Bill and Lou for dinner.
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