Thirty-two years ago, Penn biologist Daniel Janzen broke some ribs falling into a ravine in the Area de Conservacion Guanacaste in northwestern Costa Rica. Sore and unable to leave his chair beneath a 25-watt light bulb deep ...
Plants & Animals
Aug 5, 2010
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In a fascinating example of vocal mimicry, researchers from the Wildlife Conservation Society (WCS) and UFAM (Federal University of Amazonas) have documented a wild cat species imitating the call of its intended victim: a ...
Plants & Animals
Jul 8, 2010
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Using field experiments in Africa and a new computer model that gives them a bird's eye view of the world, Cambridge scientists have discovered how a bird decides whether or not a cuckoo has laid an egg in its nest. The finding ...
Plants & Animals
Apr 26, 2010
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Japanese researchers said Saturday they have developed a humanoid robot that can laugh and smile as it mimics a person's facial expressions.
Robotics
Apr 3, 2010
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If the growing presence of computer 'geeks' on television crime shows is any indicator, computers are increasingly becoming essential tools for detecting and combating skullduggery. However, television detectives are not ...
Plants & Animals
Jun 25, 2009
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Researchers at Harvard University have found that humans aren't the only ones who can groove to a beat -- some other species can dance, too. This capability was previously believed to be specific to humans. The research team ...
Plants & Animals
Apr 30, 2009
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Charles Darwin was fascinated by the colours of animals - he once wrote to his colleague Alfred Russell Wallace asking why certain animals were "so beautifully and artistically coloured".
Plants & Animals
Apr 16, 2009
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