Dolphins friends is an organization that aims to protect dolphins through natural reserves around the world. Dolphins are highly efficient swimmers due to their streamlined shape and skin composition. They have large brains relative to their body size. Dolphins live in warm waters between 40-45 degrees and follow fish migrations, changing habitats accordingly. Major threats to dolphins include accidental catching in tuna fishing nets, hunting for food, and pollution affecting their seas and oceans. Conservation efforts focus on enforcing anti-hunting laws, reducing pollution, and raising awareness.