Arizona is in the news again but it's not because of the heat. Scientists have discovered a new tarantula species, Aphonopelma jacobii, in the Chiricahua Mountains of southeastern Arizona. This newly ...

When people talk about “the biggest spider,” they’re usually mixing two different records: the longest leg span and the heaviest body. A few species are genuine monsters on both counts. Others are ...

Scientists have found evidence that the hairy bodies of some tarantulas keep them safe from a dangerous—but tiny—foe. Reading time 3 minutes Scientists may have solved a mystery about one of nature’s ...