Boa constrictors have figured out a way to inflate only parts of their lungs.
How boa constrictors breathe to kill - Double Helix
Do constrictor snakes always bite their prey before squeezing and killing? Could they kill their prey without latching teeth first? - Quora
Python San Diego Zoo Animals & Plants
How boas save themselves from suffocation when constricting and digesting dinner
Snakes Breathe Differently From Humans: Here's How Boa Constrictors Swallow Huge Preys Without Suffocating
Discovery's 'Eaten Alive' Snake Show Is Terrible
If a giant snake started eating me while I was alive, how far would I make it in its body before I could cut myself out and live? - Quora
Not by Suffocation: Study Unveils the Real Way Boa Constrictors Kill
One Big Bite - Virginia Zoo
How Boas Save Themselves From Suffocating When Squeezing Their Prey to Death
Stock Art Drawing Of A Boa Constrictor
The secrets of snakes: Their hidden legs and insane diets, explained - BBC Science Focus Magazine