Page of one of the first works of Biomechanics (De Motu Animalium of Giovanni Alfonso Borelli) in the 17th century. Biomechanics is the study of the structure and function of biological systems such as humans, animals, plants, organs, and cells by means of the methods of mechanics.omparative biomechanics overlaps strongly with many other fields, including ecology, neurobiology, developmental biology, ethology, and paleontology, to the extent of commonly publishing papers in the journals of these other fields.
For other uses, see Pitbull (disambiguation). Pit bull is the common name for a type of dog. Formal breeds often considered in North America to be of the pit bull type include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and Staffordshire Bull Terrier. The American Bulldog is also sometimes included.
The Bully breeds (Staffordshire Bull Terrier, American Staffordshire Terrier and American Pit Bull Terrier) are a group of three breeds often known collectively as Pit Bulls, but many Staffordshire Bull Terrier and American Staffordshire Terrier breeders greatly disfavor that term.he history of the bully breeds began in 1835. In that year, the British Parliament passed the Cruelty to Animals Act. This act banned two of the most popular sports in England, Bear Baiting and Bull Baiting; blood sports that pitted Mastiffs against bears and Bulldog s against Bulls, often in fights to the death.