The most heart-stopping chase of all time... 😬⁣ ⁣ On the Galapagos Islands, young marine iguanas must escape an onslaught of deadly racer snakes the moment they hatch from the sand. ⁣ ⁣ As Sir David Attenborough turns 100, revisit some of his memorable moments on BBC iPlayer. Explore the full collection at bbc.co.uk/attenborough100 ⁣ ⁣ #PlanetEarth2 #AttenboroughAt100 #DavidAttenborough100 #DavidAttenborough⁣ ⁣ Planet Earth II: Sir David Attenborough explores how animals meet the challenges of surviving in the most iconic habitats on earth.