The Importance of Protecting Sperm Whales for Ocean Health and Communication with Aliens.

National Geographic Explorer Enric Sala is proposing protections for the hundreds of sperm whales living off the Caribbean island of Dominica, where a preserve would protect them from their greatest threats: plastic trash, ocean noise pollution, and ship strikes. Sala's Pristine Seas Project has worked with 17 countries to turn large swaths of the ocean into marine protected areas. A preserve for sperm whales would also bring tourism dollars to the local economy, similar to how protecting mountain gorillas helped Rwanda.