This Month in Photo of the Day: Animal Migration Photos

Each day five million jellyfish glide across the surface of Palau’s Jellyfish Lake to follow the sun—streaming eastward in the morning and westward in the afternoon—in a stunning daily migration. At night, the jellyfish sink down 45 feet (13 meters) to absorb nutrient-rich bacteria, which the algae in their bodies require to survive.

Watch Great Migrations this month on the National Geographic Channel »
See more animal migration photos »