Scientists have made a remarkable discovery: fossilized ground squirrel droppings from thousands of years ago are packed with DNA from mammoths, bison, and big cats—some of the oldest genetic material ever reconstructed from the prehistoric era.

By analyzing these ancient fecal deposits, researchers are piecing together a vivid picture of life during the Pleistocene epoch, when megafauna roamed the Earth alongside smaller scavengers. The ground squirrels apparently played the role of nature's recyclers, feasting on carcasses and inadvertently preserving genetic clues for modern science. This unexpected archive offers paleontologists an entirely new window into understanding ancient ecosystems and the creatures that inhabited them. Read the full story →

Today's takeaway: Even the smallest creatures can unlock secrets about our planet's deep past, reminding us that nature leaves clues everywhere for those patient enough to look.