Just finished watching the first phase of the Yangtze River. What impressed me deeply was that their No.1 and No.2 camps were built near the fox's nest and the wolf's nest respectively, and people and animals lived in peace. We usually complain after working for a long time, but I'm listening to the timeline of his investigation. The time for the spotted geese to arrive at 15 is four years, which is exactly the time paid by one species. Then there are other species, which have spent a lot of time, but have not heard how hard this process is. They even make neighbors with foxes and wolves. They just say that these neighbors are kind and smart. When our life becomes better, we begin to worry about the environment around us, and we also worry about other species living with us, but there is another kind of people who have made real efforts to protect our environment and other species threatened by our greed. They didn't tell us what they were proud of, and they didn't need our songs. They may even disappear at the bottom of an unknown lake and freeze without being found. But there is no denying that they have done great things.