From adorable pygmy seahorses and opalescent squids to manta rays, tiger sharks, barnacle blennies, a coconut octopus, and much more, Secrets of the Sea brings you face-to-face with an astonishing array of marine critters and shows the fascinating ways they interact with each other and their environment. Many aquatic animals depend on one another for survival, and Secrets of the Sea demonstrates the critical importance of biodiversity to keeping our oceans healthy.