An Unusual Clamshell Found with Two Drilled Holes

We found this clamshell at Crane Beach in Ipswich this summer when collecting shells for the book, Did You Make the Hole in the Shell in the Sea? It looks like two moon snails had their sights set on devouring the same clam, and both raced to see which would drill through the shell first. The evidence shows that both succeeded and had a shared lunch. The clam didn’t have a chance!