Patagonia’s Peninsula Valdés teems with penguins, elephant seals, and majestic southern right whales that breed in its lagoons. The area’s “boomtown” development, driven by nature tourism, has made some wildlife tragic victims of human success. Hungry kelp gulls strip flesh from whales and their calves as they surface to breathe, and calf mortality has risen. Discover the dynamics behind their plight and the steps that could ultimately resolve it.  —MJS