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Tarantula Takeover: Thousands of Giant Spiders Set to Invade 5 U.S. States
29 Jul
Summary
- Thousands of giant tarantulas to emerge in 5 U.S. states from August to October
- Tarantulas can bite, flick irritating hairs, and cause alarm as they wander through campsites and backyards
- Texas home to at least 14 of the 29 different tarantula species in the U.S.

In the coming months, a massive influx of giant tarantulas is expected to occur across several U.S. states. Beginning in August and continuing through October, thousands of these softball-sized spiders will emerge from the ground in parts of California, Colorado, Kansas, New Mexico, and Texas.
While the tarantulas are mostly harmless to humans, they can still pose some risks. The spiders are capable of biting, flicking irritating hairs, and causing general alarm as they wander through campsites, backyards, and across roads. In some areas, the tarantulas are expected to appear in large groups, marching in loose lines like tiny brown tanks.
Texas, in particular, is bracing for a full-blown mating season, with the state being home to at least 14 of the 29 different tarantula species found in the U.S. Other regions, such as Colorado's La Junta, actively encourage people to visit during the tarantula mating season to observe the spectacle.
Wildlife officials have warned residents and visitors to be cautious and give the tarantulas space if encountered, as they may be defending their eggs or engaged in mating rituals. The annual mass movement of these arachnids is a natural phenomenon, and experts advise letting the spiders go about their business as they search for mates.