The male is larger, stronger and more impressive when first seen. The female, however, should be considered as equal in all other respects. Modern veterinary practice recommends neutering of non-breeding animals of both sexes as a means to a healthier, better pet. Rottweilers can tolerate cool temperature better than warm temperatures. Rottweilers should never be left outside in direct sun during the summer.
Heat stroke comes on very quickly because of the dog's black colour.
Dogs must have shelter regardless of where you live. Rottweilers were bred to be companions and are not physically or emotionally equipped to be left outdoors away from people. In warm weather leaving your dog in a car with the windows closed or barely open can be extremely dangerous. Rottweilers, with their black coats and short muzzles are more susceptible to heat stroke than many other breeds. Rottweiler puppies frequently adapt well to older dogs or cats in your home.