Explores the ways in which scientists research polar bears in Alaska, following biologists as they locate bears from a helicopter, tranquilize them, give them tattoo identification numbers and tags, gather data, and collect samples. Interest Level: 3-6 Reading Level: 8.3 ATOS Book Level: 8.3 AR Interest Level: MG AR Points: 4 AR Quiz: 148272EN Reading Counts Level: 11.9 Reading Counts Points: 7 Lexile Measure: 1260 Lexile Code: NC (Non-Conforming Text).