2 puzzles · Browse all puzzles
XENOPHORA, GASTROPOD, APERTURE, CARRIER, MOLLUSK, CHAMBER, ABALONE, SCALLOP, SPIRAL, COWRIE, SHELL, CONCH, SNAIL, PEARL, MUREX
EXTREMOPHILE, THERMOPHILE, METHANOGEN, MANGANESE, BACTERIA, TUBEWORM, ARCHAEA, MICROBE, SULFIDE, SULFUR, IRON, VENT