Sources
Sources Used:
Ducksters - https://www.ducksters.com/science/ecosystems/tundra_biome.php
Worldwildlife - https://www.worldwildlife.org/species/polar-bear
Polar Bear International - https://polarbearsinternational.org/
Time for Kids - https://www.timeforkids.com/g56/kids-care-polar-bears/