New information has been published on how boa constrictors really kill their prey – and it’s not by suffocation.
A new research article published in the Journal of Experimental Biology has found that when a boa wraps itself around a prey animal’s body, it actually restricts its blood flow. This results in the death of the prey animal’s vital organs before it has a chance to suffocate, and is far more efficient.
A boa can detect the heartbeat of it’s prey, so it knows when the animal has died.
Watch the act of constriction in this video of a boa dispatching an unfortunate (but anesthetized) rat:
The researchers involved in this study are now keen to find out if cold-blooded animals such as frogs and reptiles are killed in the same way when attacked by a boa constrictor.
They believe there may be a difference in the way that cold-blooded prey animals die, as their circulatory systems are not the same as those of mammals.