How Birds Lost Their Teeth
Posted by News Fetcher on December 15 '14 at 08:30 AM
By samzenpus from Slashdot's no-more-floss department
An anonymous reader writes A research team from the University of California, Riverside and Montclair State University, New Jersey, have found that the lack of teeth in all living birds can be traced back to a common ancestor who lived about 116 million years ago. From the article: "To solve this puzzle, the researchers used a recently created genome database that catalogues the genetic history of nearly all living bird orders--48 species in total. They were looking for two specific types of genes: one responsible for dentin, the substance that (mostly) makes up teeth, and another for the enamel that protects them. Upon finding these genes, researchers then located the mutations that deactivate them, and combed the fossil record to figure out when those mutations developed. They concluded that the loss of teeth and the development of the beak was a two-stage process, though the steps basically happened simultaneously. The paper states: 'In the first stage, tooth loss and partial beak development began on the anterior portion of both the upper and lower jaws. The second stage involved concurrent progression of tooth loss and beak development from the anterior portion of both jaws to the back of the rostrum.'"Read Replies (0)
By timothy from Slashdot's aeshetics-and-obligations department
The Associated Press, as carried by ABC News, reports that "An 11-judge panel of the 9th U.S. Circuit Court of Appeals in Pasadena will hear arguments Monday by Google, which owns YouTube, disputing the court's decision to remove Innocence of Muslims
from the popular video sharing service." At the heart of the earlier take-down order, which was the result of a 2-1 split from a 3-judge panel, is the assertion of copyright by actress Cindy Lee Garcia, who appeared in the film, but in a role considerably different from the one she thought she was playing.Google is supported in its appeal by an unusual alliance that includes filmmakers, Internet rivals such as Yahoo and prominent news media companies such as The New York Times that don't want the court to infringe on First Amendment rights. Garcia has support from the Screen Actors Guild and the American Federation of Musicians. If the court upholds the smaller panel's ruling, YouTube and other Internet companies could face takedown notices from others in minor video roles.Read Replies (0)
By timothy from Slashdot's serious-thoughts department
An anonymous reader send this link to a developing situation in Sydney, Australia, being reported on via live feed at the Guardian
, and covered by various other news outlets as well. According to CNN's coverage, "CNN affiliate Seven Network said that at least 13 people are being held at the Lindt Chocolate Cafe
. It published a photograph of people inside the cafe holding a black flag with Arabic writing on it. The flag reads: "There is no God but God and Mohammed is the prophet of God."
From The New York Times' coverage
: The police have shut down parts of the city’s transport system, and closed off the mall area. They would not confirm how many people were being held hostage inside the cafe, nor whether those inside are armed.
Local media reports said that the airspace over Sydney had been closed and the famed Sydney Opera House evacuated. Television images showed heavily armed officers with their weapons trained on the cafe.Read Replies (0)