How many pure breed and crossbreed dogs exist in the world?

There is no definitive answer to this question as the number of dog breeds and crossbreeds is constantly changing. However, according to the Fédération Cynologique Internationale (FCI), the world's largest canine organization, there are currently 344 recognized breeds of dogs. In addition to these purebred dogs, there are also countless crossbreeds, or mixed-breed dogs. The number of crossbreeds is impossible to determine, but it is estimated that there are more crossbreeds than purebred dogs in the world.