History remembers warriors for their conquests and kings for their reigns. But this one Viking left behind something more ...

Scientists analyzing 1,300-year-old human feces from the Cave of the Dead Children in Mexico have discovered that people often dealt with nasty intestinal infections more than a millennium ago.

While it is not quite as big as a Tyrannosaurus rex skeleton, fossilized poop can help paleontologists recreate lost worlds. It can tell scientists what extinct animals like dinosaurs ate, but more ...