64 SMITHSONIAN | April 2020
A polar bear pays the scientists a
visit that is not unexpected: Armed
guards and a 360-degree infrared
scanner keep a lookout.
tuis.
(Tuis.)
#1
64 SMITHSONIAN | April 2020
A polar bear pays the scientists a
visit that is not unexpected: Armed
guards and a 360-degree infrared
scanner keep a lookout.