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Article: Amphibious ancestors: vertebrates' transition to dry land took some fancy footwork.(Tiktaalik body )(Cover story)
- Article from:
- Science News
- Article date:
- June 17, 2006
- Author:
CopyrightCOPYRIGHT 2006 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Imagine a scale-covered fish that uses fleshy limbs that end in fins to haul itself out of the water. Its mosaic of body features also includes sturdy ribs, the first vertebrate neck, and both gills and lungs. Paleontologists recently unearthed fossils of such a creature, which met their expectations for a proposed missing link between fish and the earliest land vertebrates. These relics derive from an era that corresponds to a 9-million-year gap in the vertebrate fossil record.
The new fossils turned up in an Arctic region decades ago pinpointed as a likely location for a transitional creature that would be well adapted to life in the shallows but also mobile on ...
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Encyclopedia entry: Ellesmere Island
Canadian Encyclopedia;
700+ words
... ... Canadian Encyclopedia 01-01-2002 Ellesmere Island Author: JAMES MARSH Ellesmere Island , at 196 236 km, is ... Thirteen species of SPIDERS occur on Ellesmere Island. Though the climate is extreme, a peculiar ...
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