EVOLUTION
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Low concentrations of the structural protein collagen have recently been reported in dinosaur fossils based primarily on mass spectrometric analyses of whole bone extracts.
PLoS ONE: Microspectroscopic Evidence of Cretaceous Bone Proteins
Antievolution bill in New Mexico dies | NCSE
New Mexico's House Bill 302 died in committee on March 19, 2011, when the legislative session ended. The bill had been tabled by the Education Commitee of the House of Representatives on a 5-4 vote on February 18, 2011.
Marsupial Tree Frog Evolved to Regain Teeth That Ancestors Lost - NYTimes.com
But a new analysis, done by a researcher at , found that while frogs lost teeth in the lower jaw at least 200 million years ago, a particular type of marsupial tree frog regained those lower teeth about 20 million years ago.
Commentary This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract
BioMed Central | Full text | Not just another genome
What's Up, Doc? : Ciência Ao Natural
“Sauropodomorpha (Dinosauria, Saurischia) appendicular skeleton disparity: theoretical morphology and Compositional Data Analysis”, Luis Azevedo Rodrigues
Devido ao meu passado e formação como professor, as analogias têm em mim, como noutros, um fascínio e utilidade únicas. Uma das analogias práticas que utilizava era em relação à enormidade do tempo geológico. Depois de lhes ter dado rolos de máquina registadora, bem como uma folha com as diversas idades e acontecimentos geológicos, pedia-lhes para marcarem, cronologicamente e com distâncias proporcionais à idade dos acontecimentos, no rolo esticado, esses mesmos acontecimentos.
Porto-Lisboa em 4600 milhões de anos : Ciência Ao Natural
Chimpanzee and human Y chromosomes are remarkably divergent in s
Nature 463 , 536-539 (28 January 2010) | doi :10.1038/nature08700 ; Received 3 August 2009; Accepted 24 November 2009; Published online 13 January 2010
When Harvard curator of fossil insects Frank M. Carpenter dug up this wing in an Oklahoma prairie in 1940, he held a piece of the first evidence that insects had once been gigantic. The wing belonged to an ancestral dragonfly, Meganeuropsis americana, with a wingspan of almost two and a half feet.
DRAGONfly | Harvard Magazine Nov-Dec 2007
