A boa constrictor with a blood-pressure cuff around its midsection breathes with only its upper lung. Credit: John Capano Snakes are probably best known for the bits of anatomy they lack—arms ...

The boa constrictor got its name for a reason ... Its findings shed light on the anatomy of snakes and how these slithering predators have come to thrive in so many parts of the world.

A snake breeder in Florida got a two-for-one deal with the latest offspring of his pet boa constrictor ... revealed an even rarer twist in its anatomy. Unlike other two-headed animals that ...

The boa constrictor’s choke hold is an iconic animal attack. By coiling around its prey, a snake can squeeze the life out of a victim in mere minutes before gulping it down whole (SN ...

Here in the Inland Northwest, a boa constrictor lurks under leaves, logs and inside rodent burrows. That’s right, a boa species infamously known for squeezing its prey to death lives in parts of ...