With its distinctive red hourglass marking, the North American black widow spider is ... wooded areas of eastern North America, the timber rattlesnake possesses potent venom and a rattling tail ...

The eastern indigo snake is another snake that has developed immunity to all North American rattlesnakes. Since the eastern indigo snake occupies the same locations as many rattlesnake species ...

Approximately 65% of North American venomous snakebites are caused by rattlesnakes. The deadly ... [+] timber rattlesnake, native to the eastern United States, is shown here. Pit vipers produce a ...

This spider's bite is much feared because its venom is reported to be 15 times stronger than a rattlesnake's. In humans, bites produce muscle aches, nausea, and a paralysis of the diaphragm that ...