A possible genetic mechanism underlying the evolution of birds has been discovered by scientists. Studies of dinosaur fossils that show bird-like traits, such as feathers, light bones, air sacs and three-digit forelimbs, clarified evolutionary kinship of birds and dinosaurs. However, identifying genomic DNA changes during this evolutionary transition has remained a challenge.
Major gains in global biodiversity can be achieved if an additional 5 percent of land is set aside to protect key species, say experts. Scientists report such an effort could triple the protected range of those species and safeguard their functional diversity. The findings underscore the need to look beyond species numbers when developing conservation […]
Humans are not the only species to show a strong work ethic and scruples. Researchers have found evidence of conscientiousness in insects, reptiles, birds, fish and other critters, such as working hard, paying attention to detail and striving to do the right thing.