Visitors at Zion National Park should keep their eyes open for some creepy crawlers that are beginning to make appearances. Officials say in summer through fall tarantulas can be seen lumbering around the park.”Despite their movie portrayals as being terrifying and dangerous, the desert tarantula is actually a very docile and interesting creature,” a post on Zion National Park’s Facebook page stated. They say like most wildlife, they won’t bother you if you don’t bother them. Their venom is non-toxic to humans. Park officials suggest visitors just give them a little space.