But dunnarts on unpredictable diets entered torpor more often and for longer: on average, they were torpid for 270 minutes per day, while those on a restricted spent just over 200 minutes torpid.
There was also no link between food offered on a given day and the dunnart's torpor later the same day, showing that the change was driven by unpredictability, not short - term energy levels, says Munn.