It's a primate, more related to monkeys than to the bats it resembles. This is more starkly obvious when you see a young one, as in this baby clinging to the side of its mama in mid-glide.
The picture starkly demonstrates another bit of evolutionary lore, that humans look like the babies of other primates. That is, we exhibit neoteny within our group.
Nice picture!
The Tree of Life has colugos as the only 2 species in the order Dermoptera, family Cynocephalidae.
I've seen articles from 2002 that include them in the Primate order based on DNA analysis.
I report. You decide.
I just like a primate with flying in its name.
Flying lemurs aren't true primates. They are, however, our closest living non-primate relatives (unless you don't consider tree shrews to be primates).