Ocean Life - Dolphins: agile hunters in complex social pods

Dolphins are aquatic mammals encompassing forty living species within the toothed whale lineage. Ranging from the small Maui's dolphin to the ten-tonne orca, they possess streamlined bodies, horizontal tail flukes, and conical teeth adapted for catching fish and squid. They live in fluid social groups known as pods and communicate using high-pitched clicks, whistles, and echolocation. Some species can leap nine meters or swim at twenty-nine kilometers per hour, utilizing keen hearing that allows even blind individuals to survive in the wild.

Source: Wikipedia