factor: the differences between how modern birds and their ancient cousins molt their feathers. Feathers are one of

The ancestor of all modern birds probably had iridescent feathers - Field Museum Quick Navigation Search The Field

Fossil bird with fancy tail feathers shows that sometimes, it’s survival of the sexiest - Field Museum Quick

disappear in the opposite order that they first evolved.” When bird embryos develop feathers, those feathers increase in

asymmetrical feathers are on their wingtips, Caihong ’s were on its tail. “The tail feathers are asymmetrical but wing

instance, the researchers looked at the feathered dinosaur Caudipteryx . Caudipteryx had 9 primary feathers, but those feathers are

and their relatives, scientists have found that the physical make-up of feathers produce iridescent colors, but

scientists unlock hidden details in a perfectly-preserved fossil Archaeopteryx Never-before-seen feathers were the key