Latest Origin of birds Stories
The secrets of how modern birds evolved and emerged following the mass extinction of the dinosaurs some 66 million years ago have long been hidden in their genes.
The scientific community has accepted the idea that birds evolved from a branch of the dinosaur tree. What evolutionary biologists haven't figure out, however, is how wrists evolved from straight to bent and hyperflexible.
The early stages of the process through which birds evolved from dinosaurs was slow and gradual, and there was no single “missing link” separating the two different types of creatures, according to research published in Thursday’s edition of the journal Current Biology.
The grand mystery over how massive, carnivorous dinosaurs gave rise to flying birds has a simple solution, as it turns out – the meat-eaters simply kept shrinking and shrinking over a period of 50 million years.
An international team of researchers has discovered the first-ever fossils belonging to a plant-eating dinosaur that contained both scales and featherlike structures, suggesting that plumage might have been present in a far greater number of species than previously believed.
It has long been perceived that the modern-day bird evolved from the dinosaur millions of years ago. However, new evidence has challenged this common belief.
Long believed to be one of the first-ever birds, a new Archaeopteryx species has provided additional evidence that feathers evolved long before creatures gained the ability to fly, according to research published online Wednesday in the journal Nature.
While dinosaurs may have disappeared from the face of the Earth, their lineage has survived in the form of birds and new research has found that both dinosaurs and birds evolved into smaller and smaller sizes – potentially contributing to their success.
The key characteristics of birds which allow them to fly – their wings and their small size – arose much earlier than previously thought.
While birds’ three fingers appear analogous to our own thumb, index and middle fingers, embryonic evidence has shown that the “pinky” side of a bird’s claw develops first, which some theories have said is evidence of the three bird fingers being an index, middle and ring finger.
Scipionyx, meaning "Scipio's claw," and named after Scipione Breislak, is a genus of theropod dinosaur from the Early Cretaceous Period of what is now Italy (113 million years ago). It was discovered in 1981 by amateur paleontologist Giovanni Todesco near Pietraroja, Italy, about 50 miles from Naples. Fossils were preserved in the Pietraroja limestone formation, well known for unusually well-preserved fossils. Todesco thought the fossilized remains were that of a bird. Unaware of the...
Protarchaeopteryx, meaning "before Archaeopteryx," is a genus of feathered theropod dinosaur from the Aptian age of the Early Cretaceous Period (124 million years ago). It was found in the Jianshangou bed of the Yixian Formation in what is now China. It was most likely more primitive than Archaeopteryx, making it a non-avian theropod dinosaur rather than a true avian bird. Protarchaeopteryx was about 3.3 feet in length, making it larger than Archaeopteryx. It had symmetrical feathers on...
Citipati, meaning "funeral pyre lord", is a genus of theropod dinosaur from the Late Cretaceous Period of what is now Mongolia. It is known from the Djadokhta Formation in the Gobi Desert. It is one of the best known oviraptorids thanks to a number of well preserved fossils, some of which have been found in brooding positions on top of egg nests. These findings help solidify the link between non-avian dinosaurs and birds. It was first described by James M. Clark, Mark Norell, and Rinchen...
Anchiornis, meaning "near bird", is a genus of small, feathered dinosaur. The type species A. Huxleyi is named in honor of Thomas Henry Huxley, a scientist known for his early studies in the biological evolutionary relationship between birds and dinosaurs. The type specimen was described by paleontologist Xu Xing in 2008. The remains of Anchiornis were discovered in western Liaoning, China in sedimentary lake deposits. The age of the dinosaur is uncertain, but it is likely that it lived...
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.