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Leopard Seal, Anvers Island

Propelled by curiosity and powerful flippers, a leopard seal patrols a penguin rookery near Anvers Island, Antarctica. Solitary as adults, leopard seals roam so widely in the pack ice that little is known of their biology or even their numbers. Estimates range from 200,000 to 400,000.

Polar region: Exploring the Earth's extremity

1 January 1970

Also called ‘Frigid’ zones, the Earth’s Polar Regions are host to unique phenomena and ecosystem. The only plants that grow here are the specialized form of cold-loving algae while animals that don’t rely on vegetation make this region their habitat.