Tag Archives | Insects

Robotic insects make first controlled flight

In the very early hours of the morning, in a Harvard robotics laboratory last summer, an insect took flight. Half the size of a paperclip, weighing less than a tenth of a gram, it leapt [...]

May 3, 2013
Rice University biologists found that plant defenses against leaf-eating herbivores, like this cabbage looper caterpillar, are activated by the plant's sense of touch.

A bit touchy: Plants’ insect defenses activated by touch

A new study by Rice University scientists reveals that plants can use the sense of touch to fight off fungal infections and insects. The study, which will be published in the April 24 issue of [...]

April 9, 2012
Oh the changes you'll see!

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 [...]

March 2, 2012

Insects’ survival, mating decrease with age in wild

A unique insect has given researchers the opportunity to study aging in the wild for the first time. “Aging – or senescence – has been seen under controlled conditions in the lab, but never before in insects living in their naturally evolved habitat,” says U of T zoology doctoral candidate Russell Bonduriansky. “Our study of antler flies shows these animals do age in the wild.” Bonduriansky and co-researcher Chad Brassil, both of the evolutionary ecology group at U of T, studied male antler flies to see if there was aging – a term used to denote a deterioration of the body’s vital functions, not chronological time. The two zoologists examined the flies to see if their abilities to survive to the next day and to mate deteriorated with age.

November 28, 2002