NIGHT OF THE AMMONITES

Ancient ammonites came together in large aggregations to spawn and die, much as modern-day salmon do. The females of this genus, Placenticerus, reached the size of automobile tires. It’s likely that they timed their rendezvous with the much smaller males using a lunar cycle, hence the moonlit night. Avert your eyes if you must, but you can actually see tentacle-to-tentacle ammonite sex taking place in the lower center. Marine reptiles are darting in to snarf down a few of the preoccupied couples.