Chimpanzees Use Leaves as Hygiene Tools
Wild chimpanzees have been observed chewing leaves to clean themselves and treat wounds—a behavior once thought uniquely human and a sign of basic health care in animals
China is developing the Haolong reusable cargo shuttle for supporting the Tiangong space station. The shuttle will launch on rockets, dock in orbit, and return via horizontal landing. Designed for efficiency and reuse, it advances China's commercial spa
