Fossil feathers preserved inside dinosaur poop could help explain why some birds survived the dinosaur mass extinction

A UW-led research team has discovered the best-preserved fossil feathers from the Mesozoic era — in fossilized dinosaur poop. Some of these feathers have features that look like modern birds’ feathers. This finding can help researchers better understand why and how some birds survived the catastrophic event 66 million years ago that killed 75% of life on the planet.