If the head on the shed is intact and distinctly arrow-shaped, or you can make out a small pit between the eye and nostril, you’re likely to have a venomous snake. Of course, a rattlesnake’s tail looks like no other, but the skin on it does not shed, so there won’t be a tip with segmented rattles found on the shed.Ī more easily recognizable difference between venomous and nonvenomous snakes is the shape of the head. Rattlesnakes, copperheads, and cottonmouths have a single row of scales on the bottom of their tails. One exception is the coral snake, so take that into special consideration. Most nonvenomous snakes have a divided anal plate and a double row of scales from there to the tip of the tail. The anal plate is the last belly scale at the base of the cloaca, the opening where mating, giving birth and defecating all happen (again, nicely simplified into one organ) and where the tail begins. It might remind you of a kid’s puzzle book with those “what’s different in this picture” scenes, with miniscule differences that are easily overlooked.įor example, a distinguishing characteristic between pit vipers and nonvenomous snakes is whether or not the anal plate is divided. Color photos show the patterns and help you narrow down the possibilities, but you’ll want to take a much closer look at the drawings and descriptions of scales and compare them to your found shed skin. Check out a thorough field guide to local snakes, such as Snakes of North America: Eastern and Central Regions, by Alan Tennant and R.D. To accurately identify a shed, you’ll need more than a simple guide to snakes. Is it a gopher snake after your gophers? A rat snake looking for rats? A green snake stalking your grasshoppers? The shed skin you find provides clues not only to a slithering garden friend’s identity, but also to what has drawn it to your property. Their eyes are covered in a thicker membrane to protect them, so they can’t see very well and are particularly jumpy. They need something to rub against to help pull the skin off, and they are in a vulnerable position during this process, thus more likely to strike. Snakes generally don’t shed where they spend most of their time. The snake exudes lymphatic fluids to moisten the skin and release it. Although sheds are usually dry and fragile when discovered, it’s not always that way. Under ideal conditions, the entire length of the snake’s body sloughs off in one continuous piece. They shed their entire skin several times a year as an efficient way to outgrow their clothing and clean house, in a sense.Īge, type of snake, health and other factors determine how many times a year a snake sheds, so you can’t count it by years. Sheds-the term for the outer layer of skin that a snake releases during the shedding process, called ecdysis-could be more commonly seen in your garden than any actual reptiles. You Can Learn a Lot From a Shed Snakeskin When you’re out cleaning up the garden, cutting down last year’s growth and preparing for spring planting, you’re likely to come across dried natural design wonders, like wasps nests, mantis cocoons and perhaps a shed snakeskin or two. This cleanses it of parasites and allows growth, just like wriggling out of a dirty old sock. This animal that has such a no-frills, no-fuss approach to life also takes care of grooming in one big move: by shedding its outer skin. Snakes simply sense vibrations through the earth, taking note of any danger. Those pesky orifices would get clogged with dirt, and eardrums aren’t suited for changes in pressure that a life underground includes. Because most North American snakes usually live closer to the ground than up in trees, they have evolved a way to hear without ears. Specialized belly scales team up with muscular propulsion and undulation movements to go up trees, rock fences, cliff ledges and barn walls. The snake’s flexible ribs act like tiny arms and legs working from within the skin, without the risk of losing a limb to a predator-that’s what sets them apart from other reptiles and their amphibian ancestors.Īn animal that can climb without legs is impressive. It also smells with its tongue, gathering particles from the air and soil to taste with the Jacobson’s organ inside the roof of its mouth. Internally, the snake’s heart contains one single chamber, and the lung has only one lobe. Their entire body’s design is streamlined and purposeful-nothing in excess. Beyond that essential ecosystem service, snakes amaze me as elegant minimalists. Snakes are known for their population-control contributions to gardens and farms, hunting insects and animals such as midges and moles.
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