Wildlife conservation and climate action are often considered as separate environmental issues, but the two are actually closely connected. Many people know that combatting climate change helps save wildlife populations around the __36__ , but the opposite situation is also true. That is, wildlife conservation plays an important __37__ in regulating the climate. Through saving wildlife, we help save the planet, including ourselves. Today, the earth is__38__ its sixth mass extinction event, caused by human activity and global temperature rise. A research report has pointed out that, in less than 50 years, the world has already __39__ 69% of all mammal, fish, bird, reptile, and amphibian populations. This has threatened humans because the presence of a rich variety of life on earth is critical for the health of this planet. __40__ biodiversity, all species work together within their respective ecosystems to maintain a necessary balance and support life.