you should train your Chihuahua as early as you can
You should not buy it at the same time as your sister. Because if you do your sister's chihuahua will fight with yours. And you need to wait for your sister to buy it first because when you look at your sister's chihuahua you can decide which chihuahua is prettier
2000000years old is how old my chihuahuas breed
He should have a run outside, with some shade AND sun! He should not be able to escape, though they usually don't try. He should have some toys outside, so he can entertain himself. My puppy has that, and we take him to one deignated toilet area, and he is nearly fully trained!!!
Ugly. Pugs should not breed with cows or any bovine. And they would be horney all the time.
Yes
Spring
I may not be perfect, but a good dog training system is one of positive reinforcement. This means whenever a dog does what you want it to, you give the dog treat and praise. When a dog does something bad, you simply say no in a stern voice.
On average a teacup chihuahua should weigh under 4 pounds.
You just simply have to wait. Give the chihuahua extra attention. in about 2 weeks, you should see a change.
It depends on the size of the female. Small female Chihuahua's are very likely to need Cesarean Sections, you should NEVER purposely breed a female Chihuahua to a male dog (of any kind) that is larger than her. Chihuahua's should only be bred with extreme care and preparation for the worst.
Its not hard at all. When in heat they should be able to get pregnant. Sometimes on their first time they don't get pregnant. But that's rare.
Your vet should know.