The plants these dinosaurs fed on were tough and covered with hard, tooth-gouging particles. Hadrosaurids chewed their meals with teeth that possessed flattened grinding surfaces much like those of horses and bison.
University of Chicago paleontologist Paul Sereno, who published the findings on Wednesday in the online scientific journal ZooKeys, said in an interview with Reuters he actually made the discovery of the small-bodied herbivore in 1983.
A two-year old report suggested that one type of bacteria could survive by assimilating arsenic – a finding that held implications for the search for life in the cosmos. But new research contradicts those conclusions.
Of 2,000 retractions of published scientific papers since 1977, 866 were because of fraud, a new study finds. Another 201 were plagiarized. But it's hard to know if more scientists are cheating, or if detection is simply better.
Globally, reefs are being assailed by myriad threats, particularly rising sea temperatures, increased ocean acidity and more powerful storms, but the threat to the Great Barrier Reef is even more pronounced, a study published on Tuesday found.
A review of retractions in medical and biological peer-reviewed journals finds the percentage of studies that had to be withdrawn because of scientific misconduct has jumped several-fold since the mid-1970s.
Titan, the largest of the more than 60 natural satellites of Saturn, is covered in seas, lakes and rivers of methane, and hosts a thick atmosphere, making it one of the most Earth-like bodies in the solar system.
An Interior Department official said emails released by Charles Monnett were cited by a federal appeals court in decisions to vacate approval by the Bureau of Ocean Energy Management of an oil and gas company's Arctic exploration plan.
Experts stressed that the ancient Mayas, whose 'classic' culture of writing, astronomy and temple complexes flourished from A.D. 300 to 900, were extremely interested in future events, far beyond Dec. 21.