Bimodal Temporal Organization of Specific Vigilance Behaviors in Captive Black Tufted-Ear Marmosets (Callithrix penicillata)

The aerial/terrestrial scan and glance behaviors of 20 captive adult black tufted-ear marmosets (Callithrix penicillata), kept undisturbed in their own familiar social environments, were assessed at 07:00, 09:00, 11:00, 13:00 and 15:00 h, as little is known on the temporal organization of their vigilance repertoire, particularly under normal social and stress-free conditions. For each time […]