Somewhere in the unbelievably clean waters along the coast of New Zealand grows a very happy mussel. Well, we can only assume that it’s happy—at the very least, it’s thriving.
Attached to thick ropes that descend 40 feet into the water, this shellfish—its common name is the green-lipped mussel—feeds on deep-sea plankton that roil up from the seas surrounding Antarctica. It grows large for a mussel, some 4 or 5 inches long, and it gets its name from a distinct green band that forms around the edge of its shell.

Experts believe they are good for overall health.