"A remarkable international effort to map out the avian tree of life has revealed how birds evolved after the mass extinction that wiped out the dinosaurs into more than 10,000 species alive today. More than 200 scientists in 20 countries joined forces to create the evolutionary tree, which reveals how birds gained their colourful feathers, lost their teeth, and learned to sing songs." Via iO9.
A nebulous trade in forged and illegal fossils is an ever-growing headache for paleontologists. [more inside]
A team of researchers, including University of Edinburgh paleontologist Stephen Brusatte and Swarthmore College Associate Professor of Statistics Steve C. Wang, cataloging 853 skeletal characteristics in 150 dinosaurs and analyzing the rate at which these characters change, and they found that "there was no grand jump between nonbirds and birds in morphospace." In other words, birds didn't suddenly come into existence, but evolved, bit by bit, or characteristic by characteristic. But when birds were finally a thing, they went crazy. "Once it came together fully, it unlocked great evolutionary potential that allowed birds to evolve at a super-charged rate."
Western Digs is a source for "dispatches from the American ancient West." Posts are sorted into three main categories: Dinosaurs & Ancient Life (Paleontology, split into Dinosars, The Ice Age, Birds and All Fossils), Prehistoric Americans (Archaeology, split into Ancient Southwest and The Mississippians [Cahokia]), and Modern Artifacts (Historic Archaeology, including the subset The 20th Century). If you're not sure where to start reading, here are Western Digs’ Top 5 Paleontology Stories of 2013 and Western Digs’ Top 5 Archaeology Stories of 2013.
Dinosaur coloration has always been a source of wild speculation. Artistic renders have ranged from the conservative (battleship grey, lizard green) to the flamboyant, but all guesses appeared equally valid. While there are some wonderfully preserved examples of dinosaur skin texture, fossils have remained stubbornly monochromatic… until now. [more inside]
One fifth of all bird species are in danger of extinction. And right when we're finally understanding where they came from, too.
First Birds with teeth in 70 million years. Vicious toothed, flying microraptors once darkened the Jurassic skies. Now, scientists have learned to activate the dormant, vestigal avian "tooth gene" and so coaxed chicken embryos into growing teeth. From the grave, Alfred Hitchcock enviously quips - "a messy thing indeed when toothed birds kill a man". Meanwhile the French are appalled: “quand les poules auront des dents”, which translates to “when hens have teeth”, is analogous to the English “pigs might fly”. Coming soon: flying pigs. But there might be a baldness cure in this new research. I'll remember that as the flocks of mutant raptor-fowl move in for the kill.
Birds are not descended from Dinosaurs. The latest in the ongoing debate about the origin of birds and whether they evolved from dinosaurs or from a earlier common ancestor. Chinese scientists report the discovery of a 120 million year old bird fossil that had feathers and could clearly fly.