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
Animal psychopathology Animal psychopathology Animal psychopathology is the study of mental or behavioral disorders in animals. Historically, there has been an anthropocentric tendency to emphasize the study of animal psychopathologies as models for human mental illnesses. But animal psychopathologies can, from an evolutionary point of view, be more properly regarded as non-adaptive behaviors due to some sort of a cognitive disability, emotional impairment or distress. This article provides a non-exhaustive list of animal psychopathologies. Animals in the wild appear to be relatively free from eating disorders although their body composition fluctuates depending on seasonal and reproductive cycles. However, domesticated animals including farm,