Known as the giant shipworm (Kuphus polythalamia), even though they aren’t worms, they’ve never before been described in the scientific literature. But scientists knew that they had to exist, because of the massive, elephant tusk-like shells that stick around even when their horrifying denizens are gone. The shells were first described in the 1700s, and continue to be sold to collectors, but scientists were previously unable to find ones that still contained living shipworms to study, “Popular Science” reports.

Scientists discover massive sulfur-eating hell-clams in the Philippines – The Verge

wild!