66-million-year-old feather in dinosaur poop may reveal why birds survived the asteroid
About 66 million years ago, a large dinosaur, possibly a T. rex or Nanotyrannus, swallowed a bird. Remarkably, evidence of that ancient meal survived in fossilized feces, preserving what researchers describe as the finest feather specimen yet discovered from the age of dinosaurs. By examining that feather, scientists say they…
