Echolocation: Dolphins

Dolphins use of sound as a navigational tool is essential to their survival. Discover how they produce these sounds and use them to learn about their environment. Physics - Waves - Learning Points. Dolphins, like most marine species, use echolocation to understand their environment Sound waves travel five times better than light waves in water They use echolocation for navigation, hunting and communication Dolphins can make two different types of sounds, whistles and short bursts. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.