Why do pigs have more babies than horses?
Pigs, cats and dogs all have one thing in common–they have a lot of babies, called a litter, all at one time. Horses, though, usually have just one baby at a time. The difference all depends on the species of animal. All girl animals start going through a regular pattern called an estrous cycle once they reach a certain age. During this cycle, specific hormones trigger the female’s body to release eggs. Scientists call this ovulation. Babies start to grow from the eggs that are fertilized by the daddy. Over time, the babies get bigger and bigger inside the uterus (a special place for babies to grow inside the mother) until the mother gives birth. So why do pigs have more babies? Well, when pigs cycle, they release around 15 eggs. If all the eggs are fertilized, then the pig begins her pregnancy with 15 babies in her litter. Horses, on the other hand, only release one egg at a time. Every kind of animal follows its own pattern. There’s a slim chance a horse might release two eggs at on
