You may be familiar with GPS. It’s short for Global Positioning System.
GPS uses satellites to pinpoint users’ locations and tell them how to get where they want to go. Without GPS, many people would have a hard time finding their way around. Animals don’t have GPS, yet they rarely get lost. In some instances, animals travel great distances without losing their way. What’s their “secret”? Some scientists call it a sixth sense, a magnetic sixth sense. Some plants have it, too.
