This snake had been beheaded, the body put into a container to be butchered, then butchered by the gentleman with the beard in the earlier photos and then sat out for people to see it beating with nothing attached to it other than a vein that ran for about 10 inches that can't be seen since it runs behind the viewing wall that the kids are standing by. This heart beat for over 30 minutes here (per time stamps taken of this photo and later photo even though the heart was still beating with less energy after the full 30 minutes on display).