Nearly a generation after the acclaimed Blue Planet documentary was released, David Attenborough returns to narrate this groundbreaking sequel/reboot. Blue Planet ll focuses more heavily on mankind's influence on the world's oceans through both global pollution and climate change. This series features a variety of revolutionary segments never before seen in a video documentary, including: cuttlefish that hypnotize crabs to stun them, giant trevally that leap out of the water to catch low flying birds, and newly discovered dancing yeti crabs.