One sunny day, Sammy the Seahorse was sitting on a coral branch, having a chat with his friend, Olly the Octopus. Sammy was amazed at how Olly could change colors to hide from predators. 'It's called camouflage,' Olly explained. 'I can change color to blend in with my surroundings.' Just then, Billy the Blue Whale swam by, singing his deep, rumbling song. 'Billy has the loudest voice in the sea,' Sammy said. 'His song can be heard for miles!' 'That's how I communicate with other whales,' Billy said. 'We use songs to find each other in the vast sea.' As they chatted, Dora the Dolphin leaped from the water, creating a splash. 'Did you know,' she said, 'Dolphins are very social and use clicks and whistles to talk to each other?' So much to learn about our friends in the sea! They each have unique ways of surviving and communicating. Next time you see a sea creature, remember, there's more than meets the eye.