Two species of tawny brown singing mice that live deep in the mountain cloud forests of Costa Rica and Panama set their boundaries by emitting high-pitched trills, researchers at The University of Texas at Austin have discovered.
Plants & Animals
Sep 26, 2013
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Chronic infection with the parasite Toxoplasma gondii can make mice lose their innate, hard-wired fear of cats. This loss of their innate fear may persist after the parasite is no longer detectable in their brains, suggesting ...
Plants & Animals
Sep 18, 2013
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A fossil of the oldest known ancestor of modern rats—an agile creature that could climb, burrow and eat just about anything—has been unearthed in China, scientists said Thursday.
Archaeology
Aug 15, 2013
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(Phys.org) —The latest in a series of experiments testing the ability of robots to influence live animals shows that bio-inspired robots can not only elicit fear in zebrafish, but that this reaction can be modulated by ...
Plants & Animals
Jul 31, 2013
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Social monogamy, where one breeding female and one breeding male are closely associated with each other over several breeding seasons, appears to have evolved as a mating strategy, new research reveals. It was previously ...
Evolution
Jul 29, 2013
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In a series of articles, the Molecular Immunology group at the RVC has shown that the innate immune system differs between species.
Ecology
Jun 28, 2013
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Microtoid cricetids are widely considered to be the ancestral form of arvicoline rodents, a successful rodent group including voles, lemmings and muskrats. The earliest previously known microtoid cricetid is Microtocricetus ...
Archaeology
Jun 26, 2013
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(Phys.org) —Scientists have added another piece to the evolutionary puzzle to explain why certain mammal families evolved to be very large, while others remained tiny.
Plants & Animals
Jun 25, 2013
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Two researchers at the University of Rochester have discovered the chemical that makes naked mole rats cancer-proof. Their research paper will be published this week in the journal Nature.
Biochemistry
Jun 19, 2013
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(Phys.org) —Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales, while others ...
Plants & Animals
Jun 14, 2013
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