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Latest Evolution of spiders Stories

orb weaver spider genetics
2014-07-21 03:30:56

Harvard University Largest-ever study of spider genetics shows orb weaver spiders do not share common origins For decades, the story of spider evolution went like this: As insects became more and more diverse, with some species taking to the skies, spiders evolved new hunting strategies, including the ability to weave orb-shaped webs to trap their prey. From that single origin, the story goes, orb-weaver spiders diverged along different evolutionary paths, leading to today, where...

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2008-03-26 10:30:00

An interdisciplinary team of researchers from Spain and Croatia led an investigation into the peculiar lifestyle of numerous spider species, which live, feed, breed and "Ëœwalk' in an upside-down hanging position. According to their results, such "Ëœunconventional' enterprise drives a shape in spiders that confers high energy efficiency, as in oscillatory pendulums. These results will appear in this week's issue of PLoS ONE. The great majority of land animals evolved to...

2006-06-22 11:30:00

By Maggie Fox, Health and Science Correspondent WASHINGTON (Reuters) - A tiny piece of spider web, frozen in a drip of tree sap 110 million years ago, shows spiders that wove perfect orb webs evolved much earlier than had been believed, scientists reported on Thursday. A second study looking at spider genetics suggests that web-weaving arachnids evolved as long as 136 million years ago, in the Cretaceous period, when dinosaurs roamed and mammals were small, scurrying things. Both studies,...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'