DNA is a biochemical that contains genetic information. And like all other cellular ingredients, it decays if cellular systems don't maintain it. Now, scientists are more confident about how fast it falls apart after a cell dies.

Gall mites are too small to see without aid, but scientists found two of them after scanning 70,000 amber droplets from Triassic beds in Italy. How much have mites evolved in the supposed 230 million years since they were entombed in amber?

Media reports are buzzing with misleading headlines. Wired Science reported, "Giant Feathered Tyrannosaur Found in China."¹ Even the technical description, published in Nature, is titled, "A gigantic feathered dinosaur from the Lower Cretaceous of China."² Despite these assertions, the fossils' details show no actual feathers or feather imprints.