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HomeWhat's on - "Memory Burns"Tags › Tag: Insect

Tag: Insect

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'Paranoia' about rivals alters insect mating behavior

Pets / Animals: 'Paranoia' About Rivals Alters Insect Mating Behavior

1
Gifted
Gifted submitted 2011/8/16 22:30, published 2011/8/16 22:30 | 250 views
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http://www.sciencedaily.com/releases/2011/08/110808104524.htm

ScienceDaily (Aug. 8, 2011) Scientists at the University of Liverpool have found that male fruitflies experience a type of 'paranoia' in the presence of another male, which doubles the length of time they mate with a female, despite the female of the species only ever mating with one male.

Females in many species of animal have multiple mates and males have evolved particular reproductive characteristics to ensure their sperm are successful when in competition with the sperm of other males. Adaptations include physical traits that result in increased sperm count, as well as behavioural alterations such as mating with females for up to 21% longer than they normally would.

Tiny insect brains capable of huge feats

Science and Society: Tiny Insect Brains Capable of Huge Feats

1
Gifted
Gifted submitted 2010/6/13 9:37, published 2010/6/13 9:36 | 247 views
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http://www.sciencedaily.com/releases/2010/06/100611093615.htm

ScienceDaily (June 12, 2010) Insects may have tiny brains the size of a pinhead, but the latest research from the University of Adelaide shows just how clever they really are.

For the first time, researchers from the University's Discipline of Physiology have worked out how insects judge the speed of moving objects.

DNA transfer movies & science video clips inTHEtube.tv

Science and Society: DNA Transfer Between Insect And Mammals

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Gifted
Gifted submitted 2010/5/2 17:03, published 2010/5/2 17:03 | 400 views
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http://science.inthetube.tv/?keyword=DNA%20transfer


Scientists Uncover Transfer of Genetic Material Between Blood-Sucking Insect and Mammals
Researchers at The University of Texas at Arlington have found the first solid evidence of horizontal DNA transfer, the movement of genetic material among non-mating species, between parasitic invertebrates and some of their vertebrate hosts.


How a brain hormone controls insect metamorphosis

Science and Society: How a Brain Hormone Controls Insect Metamorphosis

1
Gifted
Gifted submitted 2009/12/4 12:01, published 2009/12/4 12:01 | 280 views
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http://www.sciencedaily.com/releases/2009/12/091203141859.htm


ScienceDaily (Dec. 4, 2009) A team of University of Minnesota researchers have discovered how PTTH, a hormone produced by the brain, controls the metamorphosis of juvenile insects into adults.

The finding, published in the Dec. 4 issue of Science, will help scientists understand how insect body size is programmed in response to developmental and environmental cues and offers the opportunity to develop a new generation of more environmentally safe ways to control agricultural pests as well as insects that carry human pathogens.

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