The extinction of wild horses refers to the disappearance of truly wild equine species, notably the tarpan and the near-extinction of Przewalski's horse, due to factors such as overhunting, habitat loss, and competition with human activities.
Ornithology is a branch of zoology dedicated to the study of birds, encompassing their classification, physiology, behavior, ecology, and conservation. This field has significantly contributed to broader biological concepts, including evolution and ecology.