Definition of statement for English Language Learners. : 1  something that you say or write in a formal or official way : something that is stated. : 2  an opinion, attitude, etc., that you express through the things you do, the way you dress, etc.
A dog owner should have an idea when the pet will go into heat. The reproductive cycle varies from breed to breed. Generally puberty will occur as early as 6 to 12 months in small breeds and as late as 2 years in large breeds.
Dogs in heat go through various cycles, which can vary in length. When a dog reaches puberty, that's when she begins her estrus (or heat) cycle. Many times the onset of puberty, and the length of the estrus cycle depends on the breed and size of the dog. A dog's heat cycle generally occurs twice a year, from January to March and August to October.