Conservationists and rescue workers will go to great extremes to save the species they care about, sometimes even to the ends of the Earth -- or sky. Airlifting animals to rescue them from danger or as part of a conservation program is not a new idea -- but its nonetheless spectacular. Here are five stunning views of flightless animals taking to the skies.
1. Polar bears
When polar bears wander into populated areas in Canada, the only thing local authorities can do is sedate them and then return them to the wild. As it turns out, the best way to do this is by airlifting them back home. A mother and her cub took the journey last year: