Planeta Ziemia Odcinek 11: Ocean Deep

Life goes to extraordinary lengths to survive in this immense underwater realm. A thirty tonne whale shark gorges on a school of fish and the unique overhead heli-gimbal camera reveals common dolphins rocketing at more than thirty kilometres an hour. Descending into the abyss, deep sea octopus fly with wings and vampire squid use bioluminescence to create an extraordinary colour display. And, in an extraordinary moment, one hundred hunting sailfish gun down their prey - each seeking their turn in a perfectly choreographed dance of death.