How to Find These Tiny Shells While Beachcombing This Summer If you've been to a beach anywhere along the SouthCoast, chances are, you've probably passed by a whelk egg casing at one point or another. They're typically light-colored, paper-like and spiraled, and although they may look a little funky, they actually contain some beautiful tiny treasures. @capeclasp, a TikTok account dedicated to showcasing marine life, many times right here in Massachusetts, shared a video highlighting these whelk egg casings and why you should keep an eye out for them the next time you're out beachcombing on the SouthCoast. Apparently, these casings have discs, each one containing a bunch of adorable tiny shells about the size of sesame seeds that will, over the course of many years, grow into the larger whelk shells we all know and love. Hold up.... Who knew shells grew?!