(Phys.org)—A team of researchers with members from the U.S. and Peru has found evidence that suggests the high infection rate of Chagas in some communities in Peru may be tied to the culling of guinea pigs. In their paper ...
The female mosquitoes that spread dengue and yellow fever didn't always rely on human blood to nourish their eggs. Their ancestors fed on furrier animals in the forest. But then, thousands of years ago, some of these bloodsuckers ...
Cell & Microbiology
Nov 12, 2014
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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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Subordinate animals must face higher risks than dominant ones Dominant meerkat females yield to their subaltern group members when faced with a dangerous obstacle: as a group of these animals reaches a road, a "guinea pig" ...
Plants & Animals
Feb 19, 2013
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It takes at least 10 times as many generations for a mouse to reach elephantine proportions as for the reverse transition, reveals a vast study of mammalian evolution over the past 70 million years.
Evolution
Oct 3, 2012
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From annual flu shots to childhood immunizations, needle injections are among the least popular staples of medical care. Though various techniques have been developed in hopes of taking the "ouch" out of injections, hypodermic ...
Optics & Photonics
Sep 13, 2012
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When a wet dog shakes himself dry, he does something amazing. He hits just the right rhythm to maximize the drying effect with minimal effort. The seemingly casual jiggle imparts enough centrifugal force to expel 70 percent ...
Plants & Animals
Sep 4, 2012
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Scientists at the University of Liverpool have found that mice and rats have evolved to gnaw with their front teeth and chew with their back teeth more successfully than rodents that 'specialise' in one or other of these ...
Plants & Animals
Apr 27, 2012
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An archaeological research team from North Carolina State University, the University of Washington and University of Florida has found one of the most diverse collections of prehistoric non-native animal remains in the Caribbean, ...
Archaeology
Dec 1, 2011
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(PhysOrg.com) -- A unique and mysterious guinea-pig-sized rodent, not seen since 1898 despite several organized searches, bizarrely showed up at the front door of an ecolodge at a nature reserve in Colombia, South America. ...
Plants & Animals
May 19, 2011
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