Cats can prey upon many small animals - they are known to hunt over 1000 species in search of food. Related to lions and tigers; they can hunt effectively in back gardens and on the streets. Stray cats can also foul in the garden as well as attacking birds such as pigeons or even household pets.
Various breeds of dogs can be pets; but stray dogs may often be rabid, and also may attack small animals (leaving the carcasses behind) or even small children. Often ready to bite strangers; dogs may be a mans best friend but also possess sharp teeth and enormous speed.