According to the color of the feathers and the type of bird that they come from, we can work out exactly what these angelic spiritual messages mean. Susan Taylor explains the meaning behind each ...

Scientists recreate ancient proto-feathers in chicken embryos, revealing evolutionary resilience in feather development.

"Fossil feathers are usually preserved in ancient ... "Discoveries such as these broaden the range of potential rock types where we can find fossils, even those preserving fragile soft tissues." ...