Letter from Stephanie: Global Positioning System | AMNH https://www.amnh.org/learn-teach/curriculum-collections/antarctica/navigation-gps/global-positioning-system2
The compass is great navigation tool—unless you’re in Antarctica, where the magnetic pull of the nearby South Pole is so strong you can’t get an accurate reading. Thank goodness GPS works everywhere!
Guerillas, New York City The Biodiversity Crisis: Jaguars