Species guide
Western diamondback rattlesnake
VenomousCrotalus atrox
What does Western diamondback rattlesnake look like?
A heavy-bodied snake with a diamond pattern down the back, bold black-and-white ('coon-tail') bands just before the rattle, and a broad triangular head. It rattles when alarmed. Found across the US Southwest.
Is Western diamondback rattlesnake dangerous?
Venomous and behind many serious US snakebites — its bite is a medical emergency. It usually rattles a warning and strikes only if cornered or stepped on.
What should I do about Western diamondback rattlesnake?
Freeze, find where it is, then back away slowly — never approach the sound. Seek emergency care immediately if bitten, and keep the bitten limb still.