A six-tonne orca, or killer whale, torpedoes toward the beach, its dorsal fin cutting the Patagonian sea. It launches itself onto the sand in an explosion of water and foam. Before the waters die down, the orca is shaking its immense head from side to side with a sea lion pup clamped between his jaws.

Then the orca wriggles into position to catch a wave to carry it back out to sea.

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