1. Geese fly in a V formation to increase flight efficiency, with a flock achieving 71% greater efficiency than a single bird alone.
2. By staying united and working as a team in the same direction, geese are able to reach their destination quicker and with less individual effort.
3. When a goose falls out of formation due to illness or fatigue, other geese stay beside it to help and protect it until it can fly again or dies, demonstrating the importance of mutual support.