Ryan McKellar and Lida Xing examine the Burmese amber samples containing wings from birds that lived 99 million years ago, during the mid-Cretaceous. (R.C. McKellar/Royal Saskatchewan Museum) ...

How birds got their wings The origin of a structure in bird wings essential to flight has been found in dinosaurs Date: February 24, 2023 Source: University of Tokyo Summary: Modern birds capable ...

The birds enter one at a time when feeding their nestlings. The team noticed that when they’re carrying food back to the nest, the birds would often find a perch nearby first.

Bird wings and legs evolve independently, while bat wing and leg proportions are integrated. Credit: Nature Ecology & Evolution (2024). DOI: 10.1038/s41559-024-02572-9 ...

The researchers measured the lift and drag on 12 different wing shapes, all with slightly different elbow angles. They determined that with a simple adjustment of gulls’ elbow joints – either to ...