The sternum is one of the most important and characteristic skeletal elements in living birds, highly adapted for flight and showing a diverse range of morphologies. New exceptional material of young ...

Skeletal shape varies widely across species as adaptation to specialized modes of feeding and locomotion, but how skeletal shape is established is unknown. An example of extreme diversity in the shape ...

Sternum popping can be the result of muscle strain, anxiety, arthritis, or other causes. While a popping sternum isn’t always a cause for concern, consider seeking medical help if it’s accompanied by ...