Diamondback rattlesnakes are . There are two main types: the Eastern Diamondback Rattlesnake, which is the heaviest and largest in North America, and the Western Diamondback Rattlesnake, the largest in the American West. Both are ambush predators that use heat-sensitive pits to detect prey and a potent hemotoxic venom to immobilize them.  

Diamondback rattlesnakes are , featuring heat-sensing pits to locate prey, hollow rattles made of keratin for warning, and the ability to strike up to two-thirds of their body length. These live-bearing reptiles are equipped with venom from birth, which varies in composition based on diet, with young snakes' venom being more neurotoxic to target lizards and adults' venom being more hemotoxic to prey on mammals.  

Diamondback rattlesnakes are carnivores whose diet primarily consists of  As ambush predators, they lie in wait, use heat-sensing pits to detect warm-blooded prey, and then strike to inject venom, before swallowing their meal whole

The average venom yield per bite is usually between 250 and 350 mg, with a maximum of 700–800 mg. Severe envenomation is rare but possible, and can Ideally, you'll reach medical help within 30 minutes of being bitten. If the bite is left untreated, your bodily functions will break down over a period of 2 or 3 days and the bite may result in severe organ damage or death.

Even with their potent venom Western Diamondback Rattlesnakes have predators including coyotes, kingsnakes, birds of prey, roadrunners, and even stock animals can trample them. These snakes reach sexual maturity at the age of 3. Like other rattlesnakes, they give birth to live young.

Rattlesnakes are eaten by eagles, hawks, roadrunners, kingsnakes, coyotes, bobcats, and foxes. Additionally, when deer, antelope, cows, and horses are startled by a snake they may try to trample it.

You can survive, and many do without treatment, but it is extraordinarily painful. Seek medical treatment because you don't necessarily know if you got a dry bite or A rattlesnake has , just like mammals, though it is a three-chambered heart. This heart has two atria and one ventricle, with the ventricle partially divided to help separate oxygenated and deoxygenated blood.

A rattlesnake has , just like mammals, though it is a three-chambered heart. This heart has two atria and one ventricle, with the ventricle partially divided to help separate oxygenated and deoxygenated blood.