“Shell Shock,” coined in WWI for soldiers’ psychological symptoms initially linked to physical trauma, later revealed a complex mix of psychological and physical factors, ultimately contributing to the concept of PTSD. Like history? Follow us @HistoryPhotographed 🌟 | History In Pictures

Check out our shell terms below before your next shell-collecting adventure! Captiva Crouch — crouching to collect shells in one of Fort Myers’ premium beach locations Maculated Shell — shell contains irregular spots or blotches The Sanibel Stoop — Bending over at the waist to collect shells from one of the best shell-collecting locations in the world Mollusk — a shell with an organism still living inside. Be sure to never take live shells off the beach! #MyFortMyers #VisitFortMyers #ShellCollec