"Fossil feathers are usually preserved in ancient mudrocks laid down in lakes or lagoons. The fossil vulture is preserved in ash deposits, which is extremely unusual," study lead author Valentina ...

The Great Potoo has small slits in its eyelids that allow it to detect movement and light even when its eyes are shut.

The slits in its eyelids enable the bird to see even when its eyes are closed. The great potoo’s incredible camouflage helps it blend seamlessly with tree bark, making it nearly invisible to ...

Equipped with a large, flattened beak and mouth, these birds are well-adapted to snatching prey such as flying insects and bats out of the air. Great potoos also have slits in their eyelids ...