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Podcast: Mimicking Whales, a New Type of Vision, and Plucking Baby's DNA From Mom's Blood
10 December 2010 2:59 pm
How is a whale like a parrot? Will a new test spell the end of amniocentesis? And have scientists discovered a new type of vision? Science's Online News Editor David Grimm chats about these stories and more with Science Podcast host Robert Frederick.