These ivory tusk shells found on the Texas coast are one of the ocean’s overlooked treasures.

This past week’s strandline delivered a spectacular mix of open-ocean drifters, Man o’ Wars, blue buttons, by-the-wind sailors. Tucked among them was one of my favorite finds — the purple storm snail, ...

KAPLAN, La. — Josh Courville has harvested crawfish his whole life, but these days, he's finding a less welcome catch in some of the fields he manages in southern Louisiana. Snails. Big ones. For ...