In physics, escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a massive body. The escape velocity from earth is about 40,270 km/h (25,020 mph).
Staffordshire Bull Terriers. American Bully. The American Bully was recognized as a breed by the United Kennel Club (UKC) in the summer of 2013. It first appeared in the 1990s and was created by crossing American Pit Bull Terriers, American Staffordshire Terriers, and other breeds.
The American Bulldog and the American Pit Bull Terrier, or Pit Bull, are often confused for the same breed. Both are classified as working dogs that possess a similar physical look, but their size, temperament, history, and date of breed recognition clearly mark them as different breeds.