Remote islands offer sanctuary for some of the Planet's strangest and rarest creatures. The rare pygmy three-toed sloth enjoys a peaceful existence on an idyllic Caribbean island, while nesting albatross thrive in predator-free isolation.
But island life always comes at a cost. On the Galapagos Islands, young marine iguana must escape an onslaught of deadly racer snakes the moment they hatch from the sand.
On the Sub-Antarctic island of Zavodovski life gets more extreme still; every day 1.5 million penguins risk being battered against the rocks by fierce waves as they try to get on and off the island.
I should note, the scene with the snakes is pure nightmare fuel.
Amazing how 10 years after the original Planet Earth series that the second attempt at it completely shatters my expectations and it fantastic.
Fantastic episode.