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Re: Archaeopteryx gets a brain scan



New Scientist has a report on-line at http://www.newscientist.com/news/news.jsp?id=ns99996244&lpos=home2

The next big question, as Larry Witmer says, is what the brains of bird-like dinosaurs looked like. The Chinese feathered dinosaurs are squashed flat, so CAT scans are impossible, but there are other fossils. Stay tuned for some interesting results. -- Jeff Hecht

At 2:39 PM -0400 8/4/04, MKIRKALDY@aol.com wrote:
There are two articles on the brain of _Archaeopteryx_ in tomorrow's Nature, which conclude "that _Archaeopteryx_ was probably equipped for flight."

"Inside the oldest bird brain" - Lawrence Witmer

"The avian nature of the brain and inner ear of _Archaeopteryx," by Patricio Dominguez, Angela C. Milner, Richard A. Ketcham, M. John Cookson and Timothy B. Rowe.

"The remodelling of the brain towards the avian condition must have begun well before the appearance of _Archaeopteryx_ 147 million years ago in the latest Jurassic. The convergent increase in visual and vestibular regions in pterosaurs(19) is further evidence that both an aerodynamic wing and a powerful central nervous system are integral to powered flight."


-- Jeff Hecht, science & technology writer jeff@jeffhecht.com; http://www.jeffhecht.com Boston Correspondent: New Scientist magazine Contributing Editor: Laser Focus World 525 Auburn St., Auburndale, MA 02466 USA v. 617-965-3834; fax 617-332-4760