Modeling natural photic entrainment in a subterranean rodent (Ctenomys aff. knighti), the Tuco-Tuco.
Subterranean rodents spend most of the day inside underground tunnels, where there is little daily change in environmental dyna gel variables.Our observations of tuco-tucos (Ctenomys aff.knighti) in a field enclosure indicated that these animals perceive the aboveground light-dark cycle by several bouts of light-exposure at irregular times during t