Low oxygen triggers moth molt
A new explanation for one of nature's most mysterious processes, the transformation of caterpillars into moths or butterflies, might best be described as breathless.
Aug 22, 2011
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Aug 22, 2011
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Researchers identify insect resistance to Bt pesticide
For the first time, researchers have identified how cabbage looper caterpillars in the field develop resistance to the bacterium Bacillus thuringiensis (Bt), which naturally occurs in the soil and on plants ...
Aug 30, 2011
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Iowa State students take a lighter, more autonomous 'lunabot' to NASA competition
Jared Peterson, working away in the Caterpillar Mechatronics Laboratory in Iowa State University's Hoover Hall, recently held up a small electric motor.
May 21, 2012
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Voicemail discovered in nature: Insects receive soil messages from the past
Insects can use plants as 'green phones' for communication with other bugs. A new study now shows that through those same plants insects are also able to leave 'voicemail' messages in the soil. Herbivorous ...
Jun 12, 2012
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Plants cry for help when an attack can be expected
Eggs of insect pests deposited on plants trigger the production of scents by plants that affect different plant community members probably helping the plant to get rid of the pest before it becomes harmful. ...
Sep 07, 2012
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The hungry caterpillar: Beware your enemy's enemy's enemy
When herbivores such as caterpillars feed, plants may "call for help" by emitting volatiles, which can indirectly help defend the plants. The volatiles recruit parasitoids that infect, consume and kill the ...
Nov 27, 2012
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Researchers use CT scanners to watch living pupae develop into butterflies inside chrysalis
(Phys.org) —Two British research teams have begun using micro-CT scanners to watch butterfly pupae develop into butterflies while still alive inside their chrysalis shells. The first team did so as a means ...
May 16, 2013
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Scientists learn how insects 'remodel' their bodies between life stages
It's one of life's special moments: a child finds a fat caterpillar, puts it in a jar with a twig and a few leaves, and awakens one day to find the caterpillar has disappeared and an elegant but apparently ...
Feb 29, 2012
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In relationships based on mutuality, number of individuals involved can determine rate at which species evolve
Study sheds light on production of parasitic wasp's courtship song
A new study published in the April issue of PLoS One by an interdisciplinary team of Virginia Commonwealth University researchers sheds light on the way a tiny parasitic wasp produces its courtship song. ...
May 20, 2013
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'Retired' scientists unmask bush graffiti artist
In a remarkable piece of detective work, a team of 'retired' CSIRO scientists have revealed the group of artists responsible for the iconic scribbles found on smooth-barked Eucalyptus trees in southeastern ...
Nov 27, 2012
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Oak has secret weapon against caterpillar
Penn biologist says fake eyes have enabled tropical caterpillars to thrive
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 ...
Aug 05, 2010
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Lollipops with side effects: Plant's sugary offering betrays caterpillars to predatory ants
Trichomes, hair-like projections on leaves, are part of a plant's defense against herbivores: they can be obstacles, traps, or reservoirs for toxic substances. The hairs of wild tobacco Nicotiana attenuata ...
Apr 25, 2011
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Barcodes refocus understanding of ecosystems
You're probably familiar with barcodes, those black and white stripes on most store items that bring about the familiar "beep" when scanned at checkout. They determine whether a scanned item is a gallon of ...
Aug 12, 2011
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