4. Orangutan
Orangutans, primarily found in the rainforests of Borneo and Sumatra, are gravely threatened by deforestation. As their habitats are cleared for agriculture, the destruction not only endangers these primates but also hampers carbon storage capabilities vital for climate regulation. Forests act as carbon sinks, and their depletion accelerates climate change. Protecting orangutans and their habitats is crucial, as their survival supports broader ecological functions that mitigate global warming and preserve biodiversity.