From leaping through waves to chatting in clicks and whistles, dolphins are all about social life. They often travel in pods and love to check out passing boats whenever they get the chance. But pollution and overfishing threaten their survival, and they need our help. The star of today's image is the Atlantic spotted dolphin—known for the spots on its body, which multiply and become denser with age. You'll find them in the warm temperate and tropical waters of the Atlantic, hunting fish in coordinated groups. Their speed and agility make them efficient hunters—and a thrill to watch. The United Kingdom is home to several species, including the bottlenose, common and white-beaked dolphins. Each species helps maintain the ocean's balance, highlighting the need to conserve their habitat.