Enlarge / It may not look like much, but you can actually learn a lot from a fossilized leaf that preserves insect damage. (credit: Donovan et. al.) He knew what it was as soon as he saw it: the signature sign of a bird landing. He’d seen hundreds of such tracks along the Georgia coast. […]
Enlarge / A mammoth tusk thaws out of the ground in Siberia. Ancient DNA has revolutionized how we understand human evolution, revealing how populations moved and interacted and introducing us to relatives like the Denisovans, a “ghost lineage” that we wouldn’t realize existed if it weren’t for discovering their DNA. But humans aren’t the only […]