In medicine, etiology refers to the many factors coming together to cause an illness. It is normally the focus of epidemiological studies. The etiology of scurvy is a good example. With scurvy, sailors going to sea often lacked fresh vegetables.
So, how long are dogs pregnant? The answer varies depending on several factors, but the average length of gestation, aka pregnancy, lasts between 58 to 67 days, with 63 days being the average delivery date.
The canine gestation period is roughly the same for all types of dogs. That said, itâs perfectly natural for the length of time a dog is pregnant to vary by up to ten days, depending on the individual. So, letâs talk a bit more about dog gestation periods and canine pregnancy in general. How Long Are Dogs Pregnant For?