Archaeologists have long suspected khipus were highly personal tools, with the hair serving as the author’s “signature.” ...

Lake trout in Lake Superior are believed to live about 25 to 30 years. The Michigan DNR says that the oldest trout reported ...

A new, sustainably sourced toothpaste additive may soon transform how we strengthen—and even restore—weakened or lost tooth ...

Airplane bathrooms aren’t exactly the most pleasant, comfortable, or even hygienic experiences. But their sheer number of ...

While sexual reversal, genetic gambling, or evolving to reproduce later into life make the animal kingdom incredibly resilient, it’s difficult to outrun inbreeding. Or out-slither it, in the case of ...