A snake research question
Dear Diary, It's 2009 and there's something that I've been thinking about... it's about snakes of course. Can snakes accurately gauge the height of a crevice that they are considering squeezing themselves beneath? Do snakes have a mechanism to prevent mis-judgement of the size of an opening? Can a snake prevent the problem of becoming stuck in a crevice? They should because a snake cannot travel backwards in a straight line. This means that one incorrect assessment would indo