Researchers outfitted the snakes with electrodes and scanned them using X-rays to see how the flexing predators managed to take in air
Scientists finally decode how boas constrict life out of prey without suffocating themselves
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How do snakes breathe oxygen?
How Boa Constrictors Breathe While Squeezing the Life Out of Their Prey - The New York Times
Snakes Know When to Stop Squeezing Because They Sense the Heartbeats of Their Prey
How do snakes like boa constrictors breathe with a mouthful of food? Scientists have the answer - ABC News
Faculty Contributions « The New York Times in Education
How Boa Constrictors Breathe While Squeezing the Life Out of Their Prey - The New York Times
Boas Time Their Big Squeeze to Prey's Heartbeat
How boa constrictors squeeze their prey without strangling themselves