An online resource based on the award-winning nature guide


Milksnake Eggs Hatching

8-3-15 milk snake IMG_6320Some snakes lay eggs, while others give birth to live young. Milksnakes (which are nonpoisonous) belong to the former group and sometime between April and late June female milksnakes lay 3 to 20 eggs in rotting logs or moist, warm, leaf litter — locations that offer protection from predators and cold weather. Eggs laid in June are now hatching – seven- to ten-inch milksnakes are each using their egg tooth to slice through their egg and enter the world. Newly-hatched milksnakes have especially vibrant colors, including oranges, reds, purples, and yellows, which become duller as they age. Milksnakes are most active during the day but are rarely seen due to their secretive nature. (photo: adult milksnake; insert-newly hatched milksnake)

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Common Gartersnakes Mating

4-30-15  common gartersnake IMG_9163Common Gartersnakes begin mating in the spring as soon as they emerge from brumation (a reptilian state of dormancy similar to hibernation in mammals, but involving different metabolic processes). The males leave the den first and wait for the females to exit. Once the females leave the den the males surround them, forming what is called a mating ball (one female and many males). The males give off pheromones that attract the female. After the female has chosen her mate and mated, she leaves. while the males stay to re-mate with other available females. The females have the ability to store the male’s sperm until it is needed and thus a female may not mate if she does not find a proper partner.

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Common Gartersnakes Giving Birth

8-15-14  common gartersnake 082Common Gartersnakes mate soon after emerging from hibernation in the spring, in March or April, and four months later the females give birth to live young. The newborn snakes are 5 to 9 inches long at birth and from day one have to fend for themselves. Their diet at this early stage consists of earthworms, insects, slugs, tadpoles, small frogs and fish. If there is an abundant supply of food, the young snakes can grow as much as 1 ½ inches a month during their first year. Earthworms are their preferred diet and gartersnakes are known for their ability to find them, even underground. It turns out that earthworms produce a chemical substance in their skin that is easily detected by (and attractive to) Common Gartersnakes. (Thanks to Eli Holland, who located the worm-eating newborn Common Gartersnake in the photograph.)

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Ring-necked Snakes Laying Eggs

7-11-14 ring-necked snake 188Adult Ring-necked Snakes measure one to two feet from the tip of their nose to the tip of their tail. Named for the yellow/orange ring around their neck, they also have brilliant orange scales on their belly. This snake is fairly common throughout all of New England except for the northernmost part of Maine, but not often seen due to its nocturnal habits and secretive nature. The three or four eggs that female Ring-necked Snakes lay in late June and July are deposited in and under rotting logs and stones. Several females have been known to use the same nest. The eggs hatch in late August or September and the young snakes feed on the same prey as adults — small toads, frogs, salamanders, earthworms, smaller snakes, insects and grubs.

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What a Snake’s Eyes Can Tell You

8-5-13  snake eyesYou can tell a lot about a snake just by looking at its eyes. Snakes that burrow underground usually have relatively small eyes compared to those that live above ground. The size of the eye and the shape of the pupil can often tell you if the snake is diurnal or nocturnal – typically diurnal snakes have comparatively small eyes with round pupils and nocturnal snakes have larger eyes with elliptical pupils. Both of these characteristics have to do with maximizing or minimizing the amount of light that enters the eyes. The larger the eye, the more light it can gather. The reason for the difference in pupil shape is that round pupils can close very tightly, to a pinpoint opening, shutting out bright sunlight very effectively. Elliptical pupils can open wider than round pupils, and consequently collect more light. (Photo is of a Common Gartersnake.)

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Downy Rattlesnake Plantain Flowering

8-20-13 downy rattlesnake plantain 095Downy Rattlesnake Plantain (Goodyera pubescens) is an evergreen plant (each leaf lives for about four years) belonging to the Orchid family. It has broad, rounded leaves (like plantain) that bear a design somewhat reminiscent of snake skin. For the latter reason, it was used by Native Americans to treat snakebites. Botanists think it must have been used on bites from non-poisonous snakes, for medicinally it does not cure a venomous snake bite. This is the most common species of rattlesnake-plantain in New England, and can be identified easily by the broad central stripe down the middle of each leaf. At this time of year its tall flower stalk is bedecked with tiny, delicate, white orchids, each the size of a baby finger nail, which are well worth examining through a hand lens.

Snake Jaws

garter snake with treefrog by Tom Nevins IMG_0030In this photograph taken by Tom Nevins, a Common Gartersnake is swallowing prey — a Gray Treefrog — that is much larger than the snake’s mouth. It can do this because of the structure of its jaws. The quadrate bone, which attaches the upper and lower mandibles, is not rigidly attached. Rather, it pivots, allowing vertical and horizontal rotation of the jaw. In addition, the two pieces of the lower jaw (left and right) are connected in the front of the jaw by an elastic ligament, allowing each side of the lower jaw to move independently. Due to these adaptations, a snake can consume large prey by basically walking over it with its jaws.


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