Giant shipworm

Live, long and black giant shipworm found in Philippines

 Details of the creature, which can reach up to 1.55m (5ft) in length and 6cm (2.3in) in diameter, were published in a US science journal.

The giant shipworm spends its life encased in a hard shell, submerged head-down in mud, which it feeds on.

Though its existence has been known for years, no living specimen had been studied until now.

Despite its name it is actually a bivalve, which is the same group as clams and mussels.