Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex
...icken collagen, further suggesting the presence of birdlike protein in the dinosaur bones. The mere existence of such exceedingly ancient protein defies a longstanding assumption. When an animal dies, protein immediately begins to degrade and, in the case of fossils, is slowly replaced by mineral. This subs...Dinosaurs -- stones did not help with digestion
... remains of gastric stones can be linked up with a birdlike gastric mill, according to Oliver Wings' research. From these dinosaurs known as theropods today's birds developed. The gastric mill could therefore have developed in the ancestral line of birds....Frogs ear canal may provide insights for understanding human hearing loss
...years that A. tormotus males produce high-pitched, birdlike calls that extend into the ultrasonic range. What remained to be tested was whether the ultrasounds were a byproduct of the frog's sound-production system or were heard and responded to by other males of that species. Researchers Albert S. Feng, an a...Scientists discover reason behind ear canal in Chinese frog: Ultrasonic communication
...years that A. tormotus males produce high-pitched, birdlike calls that extend into the ultrasonic range. What remained to be tested was whether the ultrasounds were a byproduct of the frog's sound production system or were heard and responded to by other males of that species. Researchers Albert S. Feng, Ph.D......iguing to find out if their songs are more or less birdlike than the lab mouse songs." Holy also wonders if mice learn singing from a tutor, as birds do. "If these processes occur in mice, it may be a little bit easier to study the genetic factors that underlie song-learning in mice, because we already have a...Newly discovered birdlike dinosaur is oldest raptor ever found in South America
...0 million years ago. Meanwhile, the new dinosaur's birdlike features--its huge, hollow wishbone; long, winglik...l recently, dromaeosaurs (swift-running, bi-pedal, birdlike dinosaurs) have been found only in Cretaceous rocks of Asia and North America, northern continents t......e solution to the disparate data is that Aves plus birdlike maniraptoran theropods (e.g., microraptors and others) may be a separate clade, distinctive from the main lineage of Theropoda, a remnant of early avian radiation, exhibiting all stages of flight and flightlessness."...