Scientists are still figuring them out. A laboratory image of Chaetopterus pugaporcinus, aka the "pigbutt worm," an unusual, round, marble-sized worm discovered in Monterey Bay. More than 90 ...

The land was experiencing tremors that fans felt were from Hive Lords, a large worm-like creature that burrows into the sand and posed real challenges to players. Some felt that the Hive Lords ...