Chihuahuan Desert Wildlife: black-tailed rattlesnake

Black-tailed Rattlesnake

Crotalus molossus

Status: Common

Size: 28-49 inches

Habitat: Desert scrub and forest

At the Zoo: Reptile House

The black-tailed rattlesnake is one of six species of rattlesnakes found in El Paso county including the western diamondback rattlesnake, rock rattlesnake, Mohave rattlesnake, prairie rattlesnake and massasauga.  Not to be confused with other rattlesnakes one of their most distinguishing features is an entirely black tail.  Some often have a black band across the eyes extending diagonally down to the corners of its mouth.

Rattlesnakes play an important role in nature, but because they are dangerous few people are willing to tolerate them in their backyards.  Learn how to rattlesnake proof your yard and make sure that your yard is clear of wood piles and areas that attract rodents. 

People are turning more and more to nature when looking for cures to diseases like cancer. Scientists studying the chemistry of snake venom have learned that the chemicals in some venom may help to relieve the pain of arthritis.  Rodents often compete with people for food and can carry diseases that can be transmitted to people. We need snakes to help control rodent numbers.  Learning to share our planet with snakes also helps to ensure a healthy environment for other living things.

Photos:
Cover and bottom by Josh More, Wikimedia Creative Commons
Top by Don Ehlen, Wikimedia Creative Commons
Middle by Andrew DuBois, Wikimedia Creative Commons