Solitary animals to herd animals are the type of change which is not seen in the horse population.
Solitary animal, an animal that does not live with others in its species. Solitary but social, a type of social organization in biology where individuals forage alone but share sleeping space.
Many animals naturally live and travel together in groups called herds. Goats, sheep, and llamas, for instance, live in herds as a form of protection. They move from one fertile grassland to another without an organized direction. Predators such as lions, wolves, and coyotes pose major risks to domestic herds.
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