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.
By Comparison, the American Bulldog is BIGGER. In contrast, the American Bulldog, with three different types, Bully type, Standard type and Hybrid type, and multiple bloodlines per type, is almost always a much larger dog than a Pitbull.