
Northern pup - 2 days old

Northern pups - 4, 8 and 10 days old (l to r)

Northern pup - 12 days old - spread reflex, transparent patagium

4 15-day-old northern pups

Northern pups - 21 days (l), 27 days old (r)

northern pup - 22 days old

northern pup at 33 days old

flying squirrels are adept in any position

a northern adult in mid-glide

northern adult, braking posture

northern adult, braking posture

northern adult, braking posture

northern adult, braking posture

northern hind foot with fur growing between toes (winter only)

northern about to land

another view

touch wood!

strobe flash shot of "launch and land"

strobe shot of launch

strobe shot of launch

northern running (note powerful hind leg musculature

southern flying squirrel fully airborne in mid-run

this northern girl is watching her weight!

three juvenile northerns, sitting on a lichen-covered branch

two adult northerns dining out together

these lineups are just awful!

a flying squirrel in the hand is worth two in the forest...

a sub-adult northern flying squirrel

one...

two...

three...

four heads...are way better than one!