Uncover what lies at the deepest depths of our oceans... In ten brief and informative essays, marine biologist and TV science advisor Professor Jon Copley journeys to one of the most mysterious and fascinating environments on Earth, the deep sea. Discover what makes this unique habitat such a challenging environment, the creatures that call it home and how ocean explorers are able to utilise the latest technology to aid their research and travel miles below the ocean surface. The Deep 10 things you should know is a brilliant guide to one of the most fascinating and curious places known to humankind.