
08/23/2025
A student finding beautiful knobbed whelks and a....pineapple?? You never know what you'll find on the beach at Cape Lookout! Knobbed whelks are predatory marine snails found along the Atlantic coast. With their strong, spiraled shells lined with distinctive “knobs,” they are built to survive in sandy and muddy habitats. These snails use a specialized proboscis to feed on bivalves like clams and mussels, playing an important role in keeping populations in balance within the ecosystem. Their shells, often washed ashore, are also excellent teaching tools. Students learn how the shape and thickness of the shell reveal the whelk’s adaptations for protection and survival. Because shells are made of calcium carbonate, they also connect to discussions about ocean chemistry and environmental change.