Dark matter is observed by the gravitational effect that  it has on radiation and the visible universe. The gravitational  force it has from dark matter plays a critical role in the shape of  the galaxies orbit and the because of the hot gases in the groups  of galaxies.
The Angus breed is perhaps the most used, most well-known breed of beef cattle in the U.S. With origins in northeast Scotland, Angus, also known as Black Angus, is popular among Brits and Americans and was first imported to the United States in 1873.
Famous Largest Cattle Breeds: 1  1. Chianina: This breed has originated from the Italy and now can be found in different places of the world. 2  3. Maine-Anjou: You can make an assumption by the name that this breed has originated from the place Anjou, 3  4. Glan Cattle: This Breed is straight from Germany and it was bred there for multi-purpose use.