Ancient dinosaurs fly with 4 wings

The first flying dinosaurs on the earth have been flying in the air like a biplane from the First World War.

The evolution of flying birds can be a true image of aviation history.

The latest analysis of feathered fossil fossils showed that the animal lowered its hind legs below the body and created the shape of a biplane. This is in contrast to the previous reconstruction, showing that the dinosaurs spread two wings like dragonflies.

Microraptor gui , who lived 125 million years ago, was one of the earliest people flying in the sky. It has 4 wings with asymmetrical long hairs on both arms and legs.

Initially, Microraptor fossil test participants found in China that the animal had spread the limbs and created two successive wings, similar to a dragonfly. But now researchers Sankar Chatterjee and R Jack Templin suggest another theory.

When examining the muscular and dimensional joints of the feathers, they found that the parallel wing structure could not make the bird take off or even be able to walk easily on the ground. Instead, scientists found that hind legs were placed under the body, creating a lower wing.

Dr. Chatterjee at Texas Tech University in Lubbock, USA, said there are two evidence to draw this conclusion. First, the dinosaurs and birds move their legs vertically, not to the sides as the parallel parallel wings require. The second is the hair on the hind leg of the disproportionate Microraptor , one of the wings extending out from the body smaller than the other.

In terms of aerodynamics, the small edges of these feathers need to face upwards while flying to block the air. It will help the bird take off. In a straight wing model, it needs to be directed to the sides."We have no other way to admit that this is a two-wing aircraft design , " Chatterjee said.

The similarities may reflect a common solution to a problem
(Photo: Jeff Martz)

The flight simulation on the computer also showed that Microraptor had curled up and down, helping them to slip through the trees. The researchers identified these flying dinosaurs living on the treetops and developing the ability to fly from tree to tree.

MT