wingspan

The 50 million-year-old skull revealed that the giant bird with a 5-meter wingspan, relatives of ducks and geese, had a rather strange trait: their beaks had bone-like hard teeth.

Although vultures do not belong to the group of 'lovely' birds in many people's eyes, this is a useful bird. And there are really interesting things about this

Stratolaunch passes the successful 74km / h taxi test at Mojave Air and Space Port, California, USA, last week, Yahoo News reported.

The world's largest aircraft with a wingspan of up to 117m and equipped with six Boeing 747 engines will fly test in early 2017.