Feathers, essential for thermoregulation, flight, and communication in birds, originate from simple appendages known as proto ...

Explore the fascinating world of dinosaur feathers and their evolution through groundbreaking research on chicken embryos.

There have not been reported cases of someone contracting the disease from down feathers. The CDC also says birds infected with avian flu spread it through their saliva, mucus, and feces.

than it is to tear down a load-bearing wall and rebuild it into something new. Some more recently-evolved feather adaptations, like the asymmetry in the flight feathers that allows birds to fly ...

At the 12th day of incubation, feather buds exhibit longitudinal domains of cell density that correspond to the barbs of the future down feather.