31 May '12, 4am

Birds Evolved From Dinosaurs By Remaining ‘Juveniles’

Birds Evolved From Dinosaurs By Remaining ‘Juveniles’

New evidence is suggesting that the emergence of birds was from a drastic change in how dinosaurs developed. Rather than spending years to reach sexual maturity, they drastically shortened their development, essentially remaining juvenile dinosaurs their whole lifespan. Some species of birds take as little as 12 weeks to reach maturity, as opposed to the very long development of some species of dinosaurs. “What is interesting about this research is the way it illustrates evolution as a developmental phenomenon,” said Arkhat Abzhanov, associate professor at Harvard and study co-author. “By changing the developmental biology in early species, nature has produced the modern bird — an entirely new creature — and one that, with approximately 10,000 species, is today the most successful group of land vertebrates on the planet.” There are some clear differences between birds and ...

Full article: http://planetsave.com/2012/05/31/birds-evolved-from-dinos...

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