title: Stable isotopes serving as a checkpoint.
authors.affiliation: California Academy of Sciences, San Francisco, CA 94118 zeray@calacademy.org.
authors.forename: Zeresenay
authors.initials: Z
authors.lastname: Alemseged
mesh_terms: D000818:Animals; D016663:Cercopithecinae / Q000033:anatomy & histology*; D004032:Diet; D005580:Fossils; D015186:Hominidae / Q000033:anatomy & histology*; D014070:Tooth / Q000033:anatomy & histology*