Abalone shell size can range from a button to a beret. - Image credit: jnrclawrie via iNaturalist, CC BY-NC 4.0 ...

ABOARD THE EVERGREEN STATE -- Booming drums and undulating chants briefly drowned out the TV news copter hovering nearby. Red-and-black cloaks bejeweled with abalone shell-buttons and geometric ...

If any shell wins the prize for UFO look-alike, it’s abalone. Shaped like a flattened flying saucer, it comes complete with a line of portholes rimming one edge, and spiral lines that swirl to ...