All cats and dogs born after July 1, 2018, are required to be neutered, or “desexed,” before they turn six months of age or within 28 days of the new owner’s possession, according to a South Australia government website. There are a few exceptions, such as for registered breeders and if a veterinarian says it would not be in the best interest of the animal (adversely effects growth or wellbeing of the animal). The goal is to reduce the number of animals who end up in shelters.