Litter (animal) and space, leaving the weakest young, or runts, to die through lack of care. In the wild, only a small percentage, if any, of the litter may survive to maturity, whereas for domesticated animals and those in captivity with human care the whole litter almost always survives. Kittens and puppies are in this group. Carnivores, rodents, and pigs usually have litters, while primates and larger herbivores usually have singletons. Litter (animal) A litter is the live birth of multiple offspring at one time in animals from the same mother and usually from one set of parents, particularly from three to
Purebred an acceptance of natural selection to weed out undesirable traits, created many ancient domesticated breeds or types now known as landraces. Many times, domesticated species live in or near areas which also still hold naturally evolved, region-specific wild ancestor species and subspecies. In some cases, a domesticated species of plant or animal may become feral, living wild. Other times, a wild species will come into an area inhabited by a domesticated species. Some of these situations lead to the creation of hybridized plants or animals, a cross between the native species and a domesticated one. This type of crossbreeding, termed