"Unveiling the Mystery of Hammerhead Shark Embryos"

Scientists have gained rare access to the development of hammerhead shark embryos, shedding light on the mystery of their unique heads. Unlike most shark species, hammerheads gestate their pups in utero, with up to 16 embryos nourished by umbilical cords before live birth. By salvaging embryos from deceased adult female sharks, researchers were able to document the entire set of developmental stages, creating a visual growth chart and uncovering insights into the evolution of these peculiar sharks.