photo by @joelsartore | Check out this pair of black lemurs from the @stlzoo! This is a sexually dimorphic species, meaning males and females have striking physical differences (the girl is brown and obviously shy). Black lemurs come from the forests of Madagascar, using their long tails for balance as they jump and climb. To learn more about the St. Louis Zoo's conservation program for lemurs and other wildlife, go to http://ift.tt/1MjiYqm. #Follow me, @joelsartore, to see more of my recent work. #joelsartore #photoark #photooftheday by natgeo

via Instagram http://ift.tt/1Mm9TBp