Colorado update: "Thousands of tarantulas will soon be crawling across this state"
Southeast Colorado is home to thousands of the creepy crawlers. Every year in August and September, the male tarantulas leave their burrows in masses and begin searching for a mate.
Scripps News Denver reports that the annual event is often mistaken as a migration because the spiders are more visible than normal and appear to be walking to a desired destination.
That desired destination, in this case, is a female tarantula's burrow, so the pair can breed.