Creatures of the Deep (E08)

Marine invertebrates are some of the most bizarre and beautiful animals on the planet, and thrive in the toughest parts of the oceans. Divers swim into a shoal of predatory Humboldt squid as they emerge from the ocean depths to hunt in packs and watch as cuttlefish gather to mate, their bodies flash in stroboscopic colors. A giant octopus commits suicide for her young. (Prime Video)