Newswise — STONY BROOK, NY, July 9, 2025 – An analysis of two theropod dinosaur fossils showed they had a type of carpal bone (pisiform) in their wrists – a bone considered important to flight in ...

The identification of a carpal bone in the wrist of dinosaurs may alter scientists’ view of the evolution of flight. An analysis of two theropod dinosaur fossils showed they had a type of carpal bone ...

When dinosaurs evolved into birds, they had to adapt their arms into wings in order to take flight, a process that altered their skeletal structure. Now, researchers have found that this process ...

New Haven, Conn. — The evolutionary path from dinosaurs to birds included the development of a tiny wrist bone that ultimately proved crucial for stabilizing wings in flight. A new study suggests that ...

Ligaments are typically bands of fibrous tissue that connect one bone to another. The pisohamate ligament is part of the structure of the hand, where it connects the pisiform bone to the hook of the ...