I'm from England http://12yo.icu 14yo In striking contrast to the worm-infested bones, the wood came back in âpristine conditionâ, Dahlgren says. Wooden ships sunk in other ocean basins within a few months become riddled with 'shipworms' â wood-boring organisms that are actually bivalve mollusks â âand after a couple of years thereâs nothing leftâ, he says.