Officials in Qinghai Province say rising levels in Ngoring Lake (top), in the Yellow River Basin, prove that environmental efforts are working. But scientists say the effects of climate change—thawing ...

Since its first documented case in the 17th century, a great mystery surrounded yellow fever. What was its cause? Theories included "fomites" — contaminated objects like clothing and bedding from ...

While languages like Elvish, Klingon, and Dothraki have been fully fleshed out, other iconic fictional dialects are just pure ...