Differences in novel food response between Pongo and Pan.

摘要: The diversity of great ape diets requires behavioral flexibility. Consequently, the exploration potentially novel food sources is supposedly beneficial, but simultaneously, apes show high neophobia to prevent harmful and poisonous intake. Social information, such as presence group members or observations non-naive, experienced individuals have been demonstrated affect acceptance items in primates. Sociality may evolutionary effects on response foods. Here we assess social information hypothesis, which predicts that selection favors higher species where abundant. We report results from 134 housed multiple facilities four closely related naturally differ their degree sociality: Pongo pygmaeus, abelii, Pan troglodytes paniscus. examined individuals' reactions foods when alone, enabled us detect any inherent differences revealed significant distinctions between species. Chimpanzees bonobos, are exposed amounts were less likely consume alone (showed neophobia) than two more solitary orangutan especially cautious showed explorative behaviors before tasting other Age influenced younger all took longer taste adults did.