National Geographic

Cranes are unique birds that for thousands of years have served as a symbol of wisdom and longevity. National Geographic

The Mola mola, also known as the ocean sunfish, is the heaviest known bony fish in the world. The largest recorded specimen measured 3.3 m (10 ft 10 in) in length and weighed 2,300 kg (5,100 lb). National Geographic

A hoatzin flaps its wings above Anangu Creek in Yasuni National Park, Ecuador. National Geographic

Male seahorses have the remarkable responsibility of giving birth to thousands of babies at once National Geographic

A male emu, Dromicius novaehollandiae, leads a group of young emus across the Menindee-Broken Hill highway south of Broken Hill. Menindee, New South Wales, Australia. National Geographic