MSN: Birds, squirrels and rats are all part of a Boa constrictor’s regular diet. Imagine the horror then of seeing a Boa wrapped around the body of a cat, strangling it forcefully. This was the scene facing Andres Gonzalez, who captured this close-up video on his cellphone. It shows a man pulling the Boa off, allowing a battered cat to escape his clutches. Andres said the cat was seen later that day looking okay. Credit: YouTube/Andres Gonzalez.