49-million years old spider now gets 3-D makeover
May 19th, 2011 - 5:36 pm ICT by IANSLondon, May 19 (IANS) Ever heard of a stunning makeover to a creature millions of years old?
Well, scientists here have used the very latest computer-imaging technology to produce stunning 3-D versions of a 49-million-year-old spider, trapped inside an opaque piece of fossilized amber.
University of Manchester researchers, working with colleagues in Germany, created the intricate images using X-ray computed tomography to study the remarkable spider, which can barely be seen under the microscope in the old and darkened amber.
Scientists showed that the amber fossil, housed in the Berlin Natural History Museum, is a member of a living genus of the Huntsman spiders (Sparassidae), a group of often large, active, free-living spiders that are hardly ever trapped in amber, according to a Manchester statement, published in Naturwissenschaften.
“More than 1,000 species of fossil spider have been described, many of them from amber,” said David Penney, from Manchester’s Faculty of Life Sciences.
“The best-known source is Baltic amber which is about 49 million years old, and which has been actively studied for over 150 years.
“A problem here is that these old, historical amber pieces have reacted with oxygen over time and are now often dark or cracked, making it hard to see the animal specimens inside,” said Penney.
“The results were surprising,” said Penney. “Computed tomography produced 3D images and movies of astounding quality, which allowed us to compare the finest details of the amber fossil with similar-looking living spiders.”
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