The Arctic tern makes one of the longest migrations in the animal kingdom. Each year, it travels between its breeding grounds in the Arctic and its wintering grounds near Antarctica, covering roughly 90,000 km (56,000 miles) on the round trip.

The journey takes the bird through two polar regions and across vast stretches of ocean. Arctic terns can live for around 30 years, meaning an individual may travel millions of kilometers during its lifetime.

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