Ancient squirrel poop provides a snapshot of life during the last ice age. And, how different types of laughter originate in ...

Scientists have reconstructed genomes of woolly mammoths, horses, steppe bison and ground squirrels that roamed the grasslands of the Canadian Arctic during the last ice age using DNA found in frozen ...

Ancient squirrel poo doesn’t stink. At least not at first. But that changes when you begin to break down the pellets. Melting them made it clear that they were not mineralized, stony fossils, says ...