The Ape Tribe's three surveillance satellites had an exceptionally long lifespan. It was precisely because of their real-time monitoring of Earth that Yan Fei could observe everything happening on the planet and learn about the events that transpired among humanity's ancestors.
After nearly 80,000 years of continuous operation, the three surveillance satellites finally began to experience malfunctions. Over the next two centuries, two of the satellites completely broke down and could no longer monitor conditions on the ground. In space, only the last functioning surveillance satellite remained, and through this satellite, Yan Fei could still observe everything happening on Earth. However, since this satellite was a geostationary orbit satellite, Yan Fei could now only see events centered around China and the East Asia region.