The penguins who obey the highway code in Antarctica

Not every commuter follows the rules of the road but these penguins filmed in Antarctica are setting a fine example.

Dozens of the birds meticulously follow intersecting 'roads' - pathways made by previous penguins.

As each penguin waddles towards the intersection the fascinating birds only have two choices - right or left.

One penguin spends more time than the rest pondering his route, causing a traffic jam to form behind him.

The reason for the penguins' adherence to the highway code is revealed at the end.

One penguin steps off the road - only to be punished with a slip on ice.

The movements of the penguins were shot in Antarctica by Melissa Brennan, a student from Arizona.

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