Joro spiders are an invasive species known for parachuting through the air. Here's why you shouldn't fear them.

Halloween may be over, but that doesn't mean that scary-looking spiders are done for the year. A large yellow spider known as the Joro spider that's been found in several states is expected to continue spreading along the East Coast, according to a scientist at Clemson University.

The spiders are sometimes called parachuting spiders because they can move by shooting out a long strand of silk that gets caught by the wind, carrying them through the air. But Clemson associate professor Dave Coyle, who has a doctorate in entomology and has been studying the spiders for years, said people shouldn't expect the brightly colored creatures to suddenly descend on them from above.

"The big ones don't do that," he said. "That's a tiny spider thing. It happens, and people don't even know that there are tiny spiders in the sky."