How boa constrictors swallow stuff whole and don't suffocate

To squeeze a creature to death and swallow it whole, boa constrictors have evolved to breathe with different sections of their rib cage.

Related Keywords

Australia , Scott Boback , Matt Fuxjager , Charles Zwemer , John Capano , Elizabeth Brainerd , Dickinson College , University Of The Sunshine Coast , National Science Foundation , Brown University , Sunshine Coast ,