Dogs constantly partake in sexual activity because they have a natural instinct to reproduce.
Whenever the urge dictates
No. Only dogs can mate with dogs.
they mate like dogs
a male chihuahua will mate with a female chihuahua when she is in heat (AKA ovulating, on her period) they can sense it and then have the urge to mate.
mate
Naturally yes. When a dog is neutered his organ for mating changes, so he may not help the female dog. It is a thing they are already born with to do. My dog has shown his "urge" to me.
The urge to mate and breed is a requirement for the survival of the species. If a specie didn't breed it'd die out after one generation.
Wait
No.
Dogs and cats should mate for about three to five minutes.
Unless he has been neutered he can mate.
They mate just like any other dogs.