Aero dynamics. Their streamlined bodies enables them to fly with less resistence against the wind, they also have hollow bones that help to reduce their body weight. These hollow bones contain air spaces.
streamlined feathers, hollow bones, and curved wings
To gain speed during the vertical dive, when hunting the preys.
320 km per hour
so that they can move smoothly
Fish, birds and snakes are a few
Because streamlined body cuts air and allows birds to move swiftly in air.
Sharks, Tuna, Mackerels, and Marlins are all examples of Streamlined body shape fishes.
birds have strong chest muscles and lightweight bones, which enables them to fly. Their feathers, too, are lightweight, which helps them fly. During flight the birds feathers compress, giving it a more streamlined shape which helps it fly faster. Flight takes up a lot of energy, and birds must eat up to 30% of their body weight each day.
structures made of keratin that are unique to birds and provide them with a warm, lightweight body covering and a streamlined shape
Yes it does it has a streamlined body
Many animals have streamlined body shapes and hollow bones, for the simple reason they strive to go faster, either in a water environment or in the air (Aerodynamics). Birds have hollow bones and usually have streamlined bodies if they are the product of natural evolution, unlike many game birds today. In the water, many of the more aquatic mammals, such as Otters, are streamlined to go faster underwater. They do not, however, have hollow bones, their weight supported by the water, as is the case with many of the mammals. Seals and such do not have hollow bones, although they have a layer of blubber and smooth skin, and a mainly streamlined body.
Their shape. Peace out. :)
Penguins' body architecture supports its life as an aquatic -- aqua-dynamic -- animal, because penguins are flightless birds.
Streamlined often means aerodynamic.
A list of streamlined animals-SnakesAnimals that live undergroundMost aquatic animalsTreefrogsBirds