An ocean "unicorn"? Giant shipworm seen for the first time
An enormous, worm-like mollusk called a shipworm that inhabits a shell resembling an elephant's tusk was recently seen for the first time ever. The animal's long, tubular shells — which measure 3 to 5 feet in length — were discovered centuries ago …
Sulphur-powered giant shipworm unearthed in Philippines
Scientists find giant, elusive clam known as 'the unicorn of mollusks'
This Is a Giant Shipworm. You May Wish It Had Stayed In Its Tube.