Scientists have compared the relationship among the strength of flight bones, body mass, and the way modern birds fly to better understand the evolution of flight in birds and extinct animals, such as ...

Scientists develop new index to understand how ancestors of modern birds used their wings based on the strength of the coracoid bone (shown in red) and the animal’s body mass ...

Coues, William Pearce — Former Instructor in Surgery, Tufts College Medical School. For record and address of author see "This Week's Issue," page 742. Copying failed.

Scientists at Nagoya University in Japan have developed an index to estimate how a bird uses its wings for flight or other locomotion by measuring the strength of the coracoid bone and the animal’s ...