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 (commonly mistaken for a Pit Bull) is a tall, muscular dog. This dog has a longer muzzle than the English and French Bulldog. These dogs are sweet, but they need lots of exercise like other large dogs. The males weigh about 60 to 120 pounds.