TIL the naked mole-rat is the only species of animal (including simple organisms) in which cancer has never been observed, it can't feel pain through its skin, it's the only mammal with a social structure similar to ants or termites including a reproducing queen, and it's the longest living rodent.

http://en.wikipedia.org/wiki/Naked_mole-rat



Submitted March 11, 2015 at 11:47PM by Andromeda224 http://www.reddit.com/r/todayilearned/comments/2ypbwh/til_the_naked_molerat_is_the_only_species_of/