Commuters rushing across St. Mark's Square at sunrise after alighting from ferry with San Giorgio Maggiore in background. Venice, Veneto, Italy, Europe

Bearded tribesman in feathered headdress steps from a modern minibus during a gathering of tribes at Mount Hagen in Papua New Guinea

Natural history staff from the Lindblad Expedition ship National Geographic Explorer doing various things in and around the Antarctic Peninsula

Adult macaroni penguins (Eudyptes chrysolophus) plunging into the sea leaving their breeding colony at Elsehul on South Georgia, Southern Ocean

People disembarking Dale Princess watching seals on beach, Martins Haven, Marloes, Pembrokeshire, Wales, UK, Europe

Natural history staff from the Lindblad Expedition ship National Geographic Endeavour doing various things in and around the Antarctic Peninsula

Adult macaroni penguins (Eudyptes chrysolophus) plunging into the sea leaving their breeding colony at Elsehul on South Georgia, Southern Ocean

Natural history staff from the Lindblad Expedition ship National Geographic Explorer doing various things in and around the Antarctic Peninsula

Natural history staff from the Lindblad Expedition ship National Geographic Explorer doing various things in and around the Antarctic Peninsula

Common Eider

Red-tailed Hawk

Polar Bear (Ursus maritimus) getting out of water, Svalbard Archipelago, Norway, Europe

USA, Texas, Dallas, Man alighting from taxi