This demonstration of manta ray behavior and flight under the water, to soaring music, shows one of the wonders of nature. Manta rays need protection from manmade hazards and disturbance. See more ocean wildlife videos to be released. Manta rays demonstrate principles of fluid dynamics with their underwater "flight" just as birds show aerodynamics as they fly through the fluid of air. Jellyfish use a different style of locomotion, also demonstrating principles of fluid dynamics, as do sea lions, that use their front flippers to propel themselves through the water; phocids use their back flippers to propel themselves while they steer with their front flippers. The girl with the scarf, in the video, demonstrates lift
from the fluid of air, and, again, fluid dynamics, along with presenting an aesthetic part of the piece; the aerial glide, soaring over the Indian Ocean, with lift from the cliffs, also demonstrates similar mechanical principles. A combination of "design" and structure, and interplay with the fluids and mechanics that apply in each case, all show basic principles of fluid dynamics. Animal structure and use, in locomotion, can be used as a model for understanding how to design manmade crafts that function in air and water.