Pitbulls show the same differences between the sexes, with males being taller and heavier than their female counterparts.

Anti-pit bull activists in Seattle floated a package of proposals, including a breed ban, to City Councilman Tim Burgess earlier this year. Grant M. Haller/Seattle Post-Intelligencer ...

In general, pit bulls aren’t aggressive with people but are “less tolerant” of other dogs than many other breeds, says Pamela Reid, PhD, vice president of the ASPCA’s Animal Behavior ...

Most pit-bull-type dogs descend from a dog-fighting breed from a cross between the Old English bulldog and the Old English terrier and was often trained for use in dog-fighting and bear-baiting.