The researchers compared a jaw fragment from Galanthis baskini (top) to a complete mandible of the least weasel (bottom). A European cent is shown for scale. Weasels are small carnivores with a long ...

Scientists discovered a 6-million-year-old fossil jaw in Spain that pushes the origin of weasels much further back in time.

Weighing as much as a cup of walnuts and resembling a squeaky dog toy, the short-tailed weasel is easy to underestimate. The spunky little creature that springs through snow drifts and woodpiles all ...