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.
American Bulldog (AB) --Typically larger than the Pit Bull, this is a breed that was developed from larger catch weight Pit Bulls. Generally this breed is mostly white, with or without solid or brindle patches, and should have uncropped ears. Fanciers of this breed often claim this is the orignal bulldog.