Breeds All<unk>  breeds can inflict a bite. Breed is not an accurate predictor of whether or not a<unk>  will bite. In the US pit bull-type and Rottweilers most frequently are identified breeds in cases of severe bites. This may be due to their size. These breeds are more frequently owned by people involved in crime. In a study comparing media accounts of 256<unk>  related deaths 2000–2009, when a strict definition was used ("documented pedigree, parentage information, or DNA test results or on the basis of concordance among media breed descriptor, animal control breed descriptor, and the veterinarian-assigned breed from a photograph") the resulting 45<unk> s comprised 20 recognized breeds and 2 known crosses. The study also published information comparing when multiple media reports (or media reports compared with animal control reports) differed in reporting the breeds. When using a strict definition ('Rottweiler' is NOT equal to 'Rottweiler-mix') 30%-40% of the reports varied. When using a less strict definition ('Rottweiler' and 'Rottweiler-mix' ARE equal enough) only 12%-15% of the reports varied. A 2000 study by the Centers for Disease Control and Prevention (CDC) of human fatalities from<unk> s during the twenty years 1979-1998, reported that Pit bull-type<unk> s and Rottweilers were involved in more than half of the deaths. Published in the Journal of the American Veterinary Medical Association, the AVMA's opinion was that the study could not be used to infer any breed specific risk for<unk>  fatalities without also noting the numbers of each breed residing in the US.<unk>  behavior In isolation, predatory behaviors are rarely the cause of an attack on a human. Predatory aggression is more commonly involved as a contributing factor for example in attacks by multiple<unk> s; a "pack kill instinct" may arise if multiple<unk> s are involved in an attack.
Dog bite
Cat bite
Spider bite
Centipede bite
Snakebite
Animal bite
Overbite
Nail biting