Kim Taylor / Southern flying squirrel {Glaucomys volans} taking off, Captive

Stephen Dalton / Northern flying squirrel {Glaucomys sabrinus} gliding, controlled conditions, native to North America

John Waters / African Ground Squirrel {Xerus inaurus} two adults fighting, jumping in territorial dispute, Kalahari, North Cape, South Africa. Dove flying away.

Yuri Shibnev / Siberian flying squirrel (Pteromys volans) on tree trunk, Ussuriland, South Primorskiy, Far East Russia

Benjam Pontinen / Siberian flying squirrels in nest {Pteromys volans} , Finland.

Yuri Shibnev / Siberian flying squirrel food hoard (Pteromys volans) Russia Ussuriland, South Primorskiy

Benjam Pontinen / Siberian flying squirrel looking out of nest hole in tree {Pteromys volans} Finland, Europe

Kim Taylor / Southern flying squirrel {Glaucomys volans} taking off, Captive

Kim Taylor / Southern flying squirrel {Glaucomys volans} landing on tree trunk, Captive

Benjam Pontinen / Siberian flying squirrel feeds in alder tree. Nurmo, Finland.

Aflo / Japanese flying squirrel (Petaurista leucogenys) in tree hole, Kyoto, Japan. March.

Jussi Murtosaari / Siberian flying squirrel (Pteromys volans) young one climbing over thin twigs to eat leaves, Finland, May