When the fat-tailed dwarf lemurs of western Madagascar were found to hibernate (for seven months of the year) in their tree-hole nests (see www.creation.com/tropical-hibern), it was thought they were the only primates to do so.
But now two other lemur species have been found to hibernate, too. Crossley's and Sibree's dwarf lemurs in eastern Madagascar spend several months each year hibernating in underground burrows.
Note that Noah didn't need to take all the various lemur species with him on the Ark—he only needed a male and female of the lemur 'kind'.
And with the now-demonstrated capacity of lemurs to hibernate ... well, slumbering lemurs on the Ark wouldn't have taken much looking after.
As the range of creatures found to have hibernation ability increases, the task assigned to Noah looks a whole lot more reasonable than skeptics like to portray.
Looks cute, but has strange habits, New Scientist 218(2916):17, 11 May 2013.