Hammerhead worms have invaded Washington DC yards as toxic mucus-coated creatures have slithered to around 30 states
The giant predatory worms native to Southeast Asia have gone global in recent years - spreading to at least 30 states. Americans have been warned not to touch them if they see one in their backyard.
United States Andrei Sourakov Andreimoth Matt Bartone A Florida Museum Braxton Wood Court National Geographic
Source: dailymail.co.uk