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Latest Gerridae Stories

2012-11-01 10:17:33

This month's special issue of Physics World is devoted to animal physics, and includes science writer Stephen Ornes explanation of how pond skaters effortlessly skip across water leaving nothing but a small ripple in their wake. As Ornes writes, our current understanding of the mechanisms adopted by the pond skater is down to the efforts of David Hu, who as a mathematics graduate from the Massachusetts Institute of Technology spent four years studying their behaviour. Hu, along with his...

Jumping Microrobot Mimics Water Strider
2012-07-29 08:40:49

redOrbit Staff & Wire Reports - Your Universe Online Researchers report in the journal ACS Applied Materials & Interfaces that they have developed the very first bio-inspired microrobot that completely mimics a real water strider. Not only can this tiny device walk on water, but it can also jump up and down continuously just like the water strider. The jumping ability allows the robot to avoid obstacles on reconnaissance or other missions. Led by Qinmin Pan, the researchers...

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2010-06-20 08:23:41

With NSF support, Oregon State University professor John Schmitt and his colleagues look to nature's running machines as locomotion models for future robots that can easily run over rough surfaces When John Schmitt looks at a fleeing cockroach, he doesn't see disease or dirt. He sees the perfect running machine. "I take my inspiration wherever I can get it," he said. Schmitt, an assistant professor in Oregon State University's school of mechanical, industrial and manufacturing engineering, is...

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2009-11-06 06:17:44

Female water striders often reject their most persistent and aggressive suitors and prefer the males who aren't so grabby, according to new research. Water striders are insects commonly seen skittering across the surface of streams. Groups of low-key male water striders mated with more females than did groups of highly sexually aggressive males, according to a study led by Omar Tonsi Eldakar of the University of Arizona's Arizona Research Laboratories. The research contradicts previous...

2009-08-13 13:55:00

Water striders, the familiar semi-aquatic bugs gliding across the lake at the cottage, have a novel body form that allows them to walk on water.  This was not always the case.  Achieving the gliding ability required the evolution of a unique arrangement of the legs, with the mid-legs greatly elongated. Scientists at the University of Toronto's Department of Ecology and Evolutionary Biology have discovered the gene behind this evolutionary change.Called the Hox gene, Ultrabithorax,...

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2009-05-05 09:33:08

Self-cleaning walls, counter tops, fabrics, even micro-robots that can walk on water -- all those things and more could be closer to reality because of research recently completed by scientists at the University of Nebraska-Lincoln and at Japan's RIKEN Institute. Humans have marveled for millennia at how water beads up and rolls off flowers, caterpillars and some insects, and how insects like water striders are able to walk effortlessly on water. It's a property called super hydrophobia and...


Latest Gerridae Reference Libraries

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2005-09-09 07:46:52

The Water strider, (also known as: Skater, Pond Skater, Jesus Bug, Water Skeeter, water scooter, water skater, and Skimmer) is any of a number of predatory insects in the family Gerridae that rely on the surface tension of water to walk on top of it. They live on the surface of ponds, slow streams, marshes, and other quiet waters and can move very quickly (up to 1 m/s) over the surface of water. Aquarius remigis (formerly known as Gerris remigis) is one of the species in Gerridae known as...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.