Venom is one of the animal kingdom's oldest and most effective weapons, providing creatures with an effective means of attack or defense. Spider venom, for example, is thought to have evolved from a ...

Arizona's plants and creepy crawlers are always trying to hurt you. Or at least that's how the joke goes, and it certainly does seem that way sometimes. Between the rattlesnakes, Gila monsters and ...

Of all the creeping, crawling critters that potentially pose problems for humans, spiders occupy a special niche. Unlike the biting, stinging pests such as hornets, wasps, snakes, and ticks that ...

Popular belief often points to apex predators such as lions or tigers as deadliest animals. However, most lethal animals are ...

Modern toads (Bufonidae) are among the most successful amphibians on the planet, a diverse group of more than 600 species ...

The Maricopa harvester ant, native to Arizona and the southwest U.S., holds the world record for most toxic insect venom. Although its venom is potent, the ant is relatively docile and stings are not ...