Facts about Rattlesnakes
- 10
Classified under the subfamily Crotalinae, rattlesnakes are native exclusively to the Americas, ranging from southern Canada down through Central and South America.
- 09
Geographic variation in rattlesnake venom potency means western diamondback venom is approximately twice as toxic per milligram as eastern diamondback venom.
- 08
Over 30 rattlesnake species exist in North America, with the eastern diamondback being the largest, reaching lengths exceeding 7 feet.
- 07
Newborn rattlesnakes emerge with a single button-like segment called a pre-button instead of a rattle, gaining additional segments with each shed skin throughout their lives.
- 06
Female rattlesnakes give birth to live young ranging from 1 to 25 offspring per litter, making them ovoviviparous rather than egg-laying snakes.
- 05
Most rattlesnake species can live 15 to 20 years in the wild, with some captive specimens recorded living over 30 years.
- 04
Pit organs located between a rattlesnake's eyes and nostrils detect infrared radiation, allowing them to hunt warm-blooded prey in complete darkness with remarkable accuracy.
- 03
Rattlesnake tails vibrate up to 60 times per second, producing a distinctive warning sound audible from approximately 30 feet away.
- 02
A single rattlesnake can produce between 20 and 150 milligrams of venom per bite, enough to kill a human adult without medical intervention.
- 01
The hemotoxic venom of rattlesnakes contains enzymes that can break down tissue and kill prey within minutes of injection.