Eastern Rat Snake (aka Black Rat Snake)

Pantherophis alleghaniensis (formerly Elaphe obsoleta obsoleta)

Reptiles Alive Name: “Rachel”

Hisssstory: Rachel was a professor’s pet at Marymount University in Arlington VA.  He donated Rachel to Reptiles Alive in October 2009.

RA Diet: Rachel likes to eat frozen mice and rats that are thawed and warmed before she eats them.

Natural Diet: Rat snakes dine on eggs, small mammals, birds, and lizards.

Range: Eastern rat snakes are found in the eastern United States from New York to Florida and west to the Great Plains.

Habitat: Rat snakes live in forests, farmland, swamps, and even in buildings and houses!

Size: Eastern rat snakes grow 4 – 6 feet long, the record is a giant 8 feet 4 inch snake.  In many parts of their range, they are the largest snake species.

Lifespan: Rat snakes can live 20 years or more.

Reproduction: Eastern rat snakes breed April-June. Females lay 5-30 eggs that hatch in about 90 days, usually around September or October.

Conservation: Rat snakes are harmless to humans and highly beneficial to us because of all the rats, mice, and other rodents they consume.  They also serve as food to other animals including eagles and hawks.   Like all animals, snakes play an important role in the health of the environment.  If you see a snake, please leave it alone.

Cool Facts: There are many myths and misunderstandings with rat snakes.  Baby rat snakes are often confused with the venomous copperhead snake because they have a pattern of squares and diamonds down their back that slowly fades to black as they get bigger.  Rat snakes also rattle their tails when they are frightened, and flatten their head into a triangle shape.  Due to these two traits, there is a myth that rat snakes can mate with copperheads and rattle snakes to produce venomous hybrid offspring.  It is actually physically impossible for rat snakes to mate with either copperheads or rattle snakes.  Snake identification can be tricky – even for snake experts.  It is always a good idea to leave snakes alone.

Posting by Caroline Seitz

Memorial Day was a particularly busy day, herpetologically speaking.  I started the day in my garden with a cup of coffee and a Northern Brown Snake basking on top of some thyme.  I was careful not to disturb the little foot long snake, and he seemed happy to hang out.  I love having brown snakes in the garden since they love to eat slugs and snails.  I also just happen to like snakes in general.

As Rachel was getting ready to drive in to work, she spotted her neighbor about to hurt a Black Rat snake that was in his front yard. Luckily, she was able to save the snake and move it to the woods in the back of his property.  Black Rat snakes help control rodent populations and are not dangerous to humans in any way.

Later, while Rachel was loading animals to go to her show, she heard our next-door neighbor scream!  She asked if he was ok and he said he just saw a snake in his golf bag in the garage and would she please come and get it.  Rachel had to leave so she would be on time for her reptile birthday show, so she came and got me.  I went over to my neighbor’s and found the 4 feet long Black Rat snake hiding behind a shelf in the back of his garage.  I gently picked it up, carried it to the bushes in my front yard and released it.

Whew – but that was not all!

As usual, I saw the Five-lined Skink lizards that live in the my compost area.  These beautful blue, yellow, and brown striped lizards are fantastic insect hunters and are a fabulous addition to any garden.  They are also fun to watch.

The grand finale of the reptile day was in the evening.  We had a Reptiles Alive Memorial Day barbecue with Jen Pennington, Jen Rafter, Rachel and a few other friends and family members.  As Rachel was walking in the garden, she found a young Eastern Box turtle!  We all looked at the turtle and noted how young and healthy it looked before returning it to the garden.

So, to review, in one day in one neighborhood we saw:   One Northern Brown snake, one Black Rat Snake, two Five-lined Skinks, one Eastern Box turtle and Rachel saw one more Black Rat snake in her neighborhood before she came to work.