How often can you breed a yorkie?

Is it safe for your dog to fly if she is pregnant? Female pug who sleeps in between your husband and you at the foot of the bed but everytime you get up she moves into your spot why is this? What are the preys of the chimpanzees? How old is Pink Sheep? What to cross breed to get a Balinese on pet shop story? Is a poodle ectothermic? Why would a dog eat a dead starfish? Number of oxen drawing a wagon? Who was most affected by the change from horses to cars? What are homes like in China? How many grizzlies are found in the Yukon? How much teeth does a snowshoe rabbit have? Could you outrun a warthog? What is a open sea zone? How much trouble could someone get into for dog abuse? Should you keep using prestone yellow antifreeze or should you keep using green antifreeze? Can you outrun a rhino? How long do swift foxes live in the wild? How big can a deer get? What does the name fitch mean?