Snakes activate different sections of the rib cage, using far end of lungs as a bellows.
This is why boa constrictors can still breathe while squeezing the life out of prey
Not by Suffocation: Study Unveils the Real Way Boa Constrictors Kill
This is why boa constrictors can still breathe while squeezing the life
Biology Ars Technica
Boas have a breathing trick to keep from suffocating themselves - The Wildlife Society
How do constrictor boas prevent suffocation when they squeeze their prey? - Infobae
snakes The 9th Circle Club
How Does a Boa Constrictor Manage to Breathe While Squishing Prey? - Science & Health
How do constrictor boas prevent suffocation when they squeeze their prey? - Infobae
Do Snakes Have Tails? Museum of Science, Boston
Ars Technica
Look: Scientists finally discover how boa constrictors can eat giant meals without suffocating
March, 2022