News tagged with caterpillars

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Insects that deter predators produce fewer offspring

Scientists studied the defences used by caterpillars that transform into large white butterflies, called Pieris brassicae. The insects regurgitate semi-digested cabbage leaves to make them smell and taste unpleasant to predators. ...

dateJan 25, 2011 in Ecology
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Conker trees facing peril from alien invaders

(PhysOrg.com) -- Conkers, a favourite playground game in British schools, could soon be just a fond memory if a serious threat to horse chestnut trees continues to spread. Now academics from the Universities ...

dateJun 11, 2010 in Ecology
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Oak has secret weapon against caterpillar

A plague of caterpillars is munching its way through the leaves on our trees. Oak forests are suffering the most, reports the Nature Calendar. Cause for concern? Not according to entomologist and expert on insect pests, Leen ...

dateMay 31, 2010 in Ecology
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Eating like a bird helps forests grow

Lions, tigers and bears top the ecological pyramid -- the diagram of the food chain that every school child knows. They eat smaller animals, feeding on energy that flows up from the base where plants convert ...

dateApr 05, 2010 in Plants & Animals
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Why Female Moths are Big and Beautiful

(PhysOrg.com) -- In most animal species, males and females show obvious differences in body size. But how can this be, given that both sexes share the same genes governing their growth? University of Arizona ...

dateMar 11, 2010 in Plants & Animals
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Invasive Nettle Moth Triggers Hawaii Research

(PhysOrg.com) -- Like children everywhere, kids in Hawaii love to run barefoot through tall grass. But an invasive pest called the nettle moth caterpillar can take the fun out of this simple childhood pleasure, ...

dateNov 19, 2009 in Ecology
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