Like other flying squirrels, it has a web of skin between its legs which it uses to glide between trees.
It is much larger than the related Japanese dwarf flying squirrel which does not exceed 220g.
It eats fruit and nuts and lives in holes in large trees.
During mating, after ejaculation, the male produces a sticky protein called a coitus plug from his penis which becomes firm and blocks the female's vagina.
Gestation lasts about 74 days and one or two young are born in early autumn.