Vipers are venomous snakes that belong to the scientific family Viperidae, which includes hundreds of species spread across multiple continents. Known for its potent viper venom, retractable fangs ...

Many species of frog are known to be poisonous, such as the often colourful poison dart frogs. But although incredibly rare, there are species that are venomous too. There are currently only two ...

Arizona has 30 species of tarantulas and a new one was recently identified in the Chiricahua Mountains. Here's what to know about Aphonopelma jacobii.

Biologists have discovered a new tarantula species in Cuba that is bigger and hairier than other spiders in its genus. A new study, "A hairy giant among dwarves," published this month in the ...

Arizona is home to 13 species of rattlesnakes, all of which are venomous. There are six species most commonly found in metro Phoenix. These six snakes are: Western Diamondback rattlesnake; ...

The most venomous snakes in Arizona include rattlesnakes, sidewinders and coral snakes. Here's where they live and how to tell if a snake is venomous.

Scientists have found a new species of tarantula, a red-reared arachnid, in Arizona, and the discovery was "rather unexpected." “We often hear about new species being discovered from remote ...