Yes. Larger dogs start their heat cycles later than small dogs and some breeds and mixes - like high percentage wolf dogs - cycle only once per year in the late winter/very early spring for spring pups.
It would have two cycles a year like any normal dog.
about a week to two weeks if the dog is not normal in about two weeks you should take it to a vet
Usually heat cycles last for around two weeks. Every dog is different so it may be longer.
Every four years, but a president can only serve two elected terms.
It all depends on the dog and sometimes breed, usually every 6 months to one year, they go into a heat cycle. After the birth of puppies, some bitches go into a small cycle and they should NOT be breed during this cycle, it is a natural cleansing process. Ethically, they should only be breed every other cycle or better yet, once every two years if they go every 6 mo.
The two biogeochemical cycles that depend directly on photosynthesis are the oxygen cycle and the carbon cycle. Photosynthesis is the driving force between these two cycles.
No; there is likely nothing wrong. It's not uncommon for a dog to only have two puppies especially if it is a first breeding.
Dog
For different functions. For example, intestinal cells have short cell cycles because they constantly have to multiply to replace dead or destroyed intestinal cells. Neurons have long cell cycles, because they don't have to multiply and have to last the life of the person.
No. There are two or three months of every year they are not pregnant. They have to be let be this way so that they can regenerate their normal estrus cycle in order to be able to breed again. Once they have two or three normal estrus cycles, they are re-bred again.
Female dogs do not have actual menstrual cycles. Instead, they have estrus cycles. These cycles consists of proestrus, estrus, diestrus and anestrus. The number of cycles varies by breed with most breeds cycling two times a year,
my dog just laid around for about a day or two but after that he was back to normal