Add Yahoo as a preferred source to see more of our stories on Google. Arizona is home to around 30 species of tarantulas, but there's one fearless predator that's making headlines— the tarantula hawk.

A new tarantula species with exceptionally long reproductive organs, aggressive females, and a completely new genus. These are the key findings of a study that overturns the established view of the ...

Tarantula mating season is here — and if you're in the Southwest, you might see hordes of these fist-sized spiders marching across the landscape. From late summer through fall, male tarantulas emerge ...