Scientists have recently discovered a pair of wings that belonged to dinosaur-era bird ancestors encased in amber. From The Verge:
In a new study published in the Nature Communications journal this week, researchers say that the wings have very similar structures, coloring, and feather layouts as the wings of modern birds, despite the fact they likely belonged to 100-million-year-old avialans called enantiornithes.
X-ray scans indicate that the fossilized wings — found in northern Myanmar — likely belonged to juvenile creatures, and contain skin, muscle, and claws, as well as various layers of feathers, arranged in a markedly similar fashion to those of birds. That’s not the only similarity: the feathers appear uniformly black inside the amber, actually show up in shades of brown, silver, and white under the microscope.
I love that discoveries like this are still being made. It gives us more insight into our planet’s past.