Horse is an odd-toed ungulate mammal belonging to Equidae family. Evolved from Eohippus 45-55 million years ago. First domesticated by Proto-Indo-Europeans around 4000 BC. Modern horses live 25-30 years, with oldest recorded at 62
Herd is a social group of animals of same species, wild or domestic. Most commonly refers to grazing ungulates, birds use flocking. Control animals often imitate herd behavior but aren't necessarily leaders
Self-awareness is experiencing one's own personality and individuality. It differs from consciousness, which focuses on body and environment. Mirror neurons may provide neurological basis for self-awareness
Term describes insincere emotional displays, especially hypocrisy. Derives from ancient belief crocodiles shed tears while eating prey. First spread in English through Sir John Mandeville's travels
Wink is a brief closure of one eye in informal non-verbal communication. It signals shared knowledge or intent but requires context. Can be used to indicate lies, teasing, or suggest jokes
Alpacas were domesticated 5,000-6,000 years ago from vicuña and guanaco. Originally kept in Andes herds, now worldwide on farms. Peru has largest alpaca population, with over half world's animals