Dogs do "stay like god created": some dogs are gay.
As are some giraffes, penguins, parrots, beetles, whales, apes, monkeys, birds, horses, etc. Homosexual behavior is not new, unnatural, or unique to humans. We've all seen examples of it, such as two dogs in the park who know no shame. But beyond that, the Discovery Channel has mentioned homosexual parenting in black swans. There have been Museum exhibits, National Geographic articles, Wikipedia has an article on it, and even NARTH, the National Assn. for Research & Therapy of Homosexuality admits to homosexuality in animals... though they say it isn't "homosexual" it's just "sexual" and animals are too dumb to know better.
By your postulation, either homosexuality is natural, or animals aren't acting according to your god's will.