It depends on the type of dog. It's not a big deal if your dog can at 4 months old.
Usually between six months and a year old, but it is different for each dog.
4-8 months.
A one-year old dog is probably as mature as a 13-year old person. The 'seven-years to one' rule is a load of old hogswoggle until a dog is middle aged. A dog aged five has the same maturity as a 36-year-old.
Most dogs go into a estrous cycle within about 6 monthes of age some up to about 14 monthes of age. Dog's estrous cycle usually lasts three weeks, meaning she can get pregnant in that timeframe Dogs go into heat about 2 times a year, some up to 4 times a year
This depends on the size of the dog when it is mature (i.e what breed it is). But for all breeds 4 months (human) would be 5-6 years (dog). Up to human year 5, all sizes of breeds age similarly, where they can be considered to be in their mid- 30s in human years, but after that, the scale changes quite a lot according to breed size. Below I've posted 2 URLs that take you to charts showing the ages for the different size of dog - the first is fairly simplified, the second is pretty detailed, but you'll need to know the adult breed average weight for an dog of the type you have to use it.
6+4=10 so he is 10 months old
Yes
Puppies may hump at 4 months of age due to hormonal changes and natural behavior related to dominance or play.
5 1/4 years
Any where from 4 to 6 months but let your vet tell you whats right for your dog or puppy.
Of course they can eat dog food at 7 months. My dog ate dog food when she is only 4 months old. But please choose the food specially made for pups so they can get the suffiecient amount of nutrients.
When I first got my dog, which was when she was four months old, I was told to feed her one cup of her dog food. Now that she is one I feed her two cups a day. One in the morning, and one in the evening.
Under AKC rules, a dog needs to be at least 4 months old to enter in a conformation show. There are different requirements for other types of shows (such as agility, etc).
4 months.
There are no horse years. You do not use horse years like you do dog years. A year is a year for the horse in years. So 3 years and 4 months would be just that. 3 years and 4 months.
Usually between six months and a year old, but it is different for each dog.
A 4-year-old is 48 months old, as there are 12 months in a year. To calculate this, you simply multiply 4 years by 12 months per year (4 x 12 = 48).