Western Diamondback Rattlesnake
The second largest venomous snake in North America, this member of the viper family uses the rattle at the end of its tail to warn against getting too close!
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Crotalus
Species: C. atrox
Common Names: Western Diamondback Rattlesnake, Texas Diamond-back, Adobe Snake, Arizona Diamondback Rattlesnake, Desert Diamondback
This rattlesnake, like other snakes, is cold-blooded. This means it relies on the sun to raise its body temperature and provide energy. Because of this, it is less active in colder months and spends much of its time hibernating or basking in the sun during the late autumn, winter and early spring.
They use their venom to subdue small mammals including prairie dogs, mice, rats, squirrels, and rabbits including the American desert hare. They also eat small reptiles, amphibians and birds. The rattlesnake is not without predators of its own, and it may find itself preyed upon by hawks, eagles, roadrunners, hogs and even other snakes!
They will use their venomous bite to defend against predators. Their rattle is designed to ward off aggressors or any creature that gets too close, and if that does not work, the snake will strike using its fangs.
Rattlesnakes are viviparous, meaning they give birth to live young. Pregnancy lasts for around half a year, and the resulting litter may contain up to twelve baby rattlesnakes, or sometimes as many as 25. While the young are able to bite and contain venom from birth, this does not stop many of the baby snakes from falling prey to predators, as the mother does not stay to raise them once they are born.
The western diamondback is a long, thick-bodied snake that can grow up to 7 feet in length, although a length of 4 to 5 feet is more common. It is thought to be the second largest rattlesnake, and the second largest venomous snake in North America, behind its cousin the eastern diamondback.
The snake gets its name from the pattern of diamond shaped markings along its scaly body. Its overall coloration is a gray-brown, with darker gray-brown on the diamond patches. Toward the snake’s tail, its coloration changes to a series of white and black stripes, which culminates in the snake’s namesake rattle.
The rattle is a series of modified scales that, when vibrated, produce a loud rattling sound that is meant to warn approaching creatures that the rattlesnake may strike. With its large fangs, it can inject well over 500 milligrams of venom from a single bite. Bites are rarely fatal, but if not treated quickly with antivenom, they can cause severe symptoms and occasionally result in fatalities.
The western diamondback rattlesnake is a member of the pit viper family, in the subfamily Crotalinae which includes all 36 species of rattlesnake. Rattlesnakes are native to North and South America, from Canada to Argentina.
The generic name Crotalus originates from the Greek word for “castanet”, a musical instrument that makes a clacking sound. This name refers to the snake’s rattle which makes a similar noise.
The western diamondback is a species of Least Concern, with a wide range across the southwestern United States and Mexico. They are hunted for food, as well as for their skins.
References
https://en.wikipedia.org/wiki/Western_diamondback_rattlesnake
https://en.wikipedia.org/wiki/Rattlesnake
Safari Ltd Western Diamondback Rattlesnake Toys
Incredible Western Diamondback Rattlesnake Figure