Boa constrictors don’t kill the way you think they do

Researchers have demonstrated for the first time that constrictor snakes kill by stopping the flow of blood inside their prey. That approach is so efficient that animals don't survive long enough to die from asphyxiation — the method that most scientists thought was the correct "cause of death" in constricted prey. The finding, published in the Journal of Experimental Biology, likely means that many a biology textbook will need to be revised.

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