Among primates, the fat - tailed lemur of Madagascar takes top prize for laziness, hiding itself away in tree holes and snoozing through 7 months of the year. (sciencemag.org)
To understand what was going on, Lardner and Maklarin installed a plastic pipe in the forest, filled it halfway with water, and added a male tree hole frog. (sciencemag.org)
But unlike winter hibernators, these lemurs have to warm up periodically to at least 30oC, making the choice of tree hole important. (sciencemag.org)