Know the facts about Rattlesnakes Rattlesnakes bites can be deadly. April marks the beginning of Rattlesnake season, when rattlesnakes become active and most bites to dogs occur. Dogs encounter snakes during play or work in the snakes' natural habitat. Signs of a snakebite include immediate pain, swelling, weakness, difficulty breathing, nausea, vomiting, and bleeding from the wound.

Know how to protect your dog Do not allow your dog off-leash in Rattlesnake habitat. Do not allow your dog to investigate rock piles and wood piles. If your dog is bitten seek immediate veterinary care. Vaccines against Rattlesnake venom help protect against the effects of a rattlesnake bite, increasing your dog's chance at survival.