Paleontology
- 			 Paleontology PaleontologySuds versus nanoparticles and more reader feedbackReaders discuss the posture of an ancient reptile and why washing machines and nanoparticles don't mix. 
- 			 Paleontology PaleontologyAncient brain fossils hint at body evolution of creepy-crawliesFossilized brains — found in the Burgess Shale in western Canada — offer clues to how arthropods morphed from soft- to hard-bodied animals. 
- 			 Paleontology PaleontologyOldest known avian relative of today’s birds found in ChinaFossil find suggests modern birds’ oldest avian relative lived about 6 million years before previous record holder. By Meghan Rosen
- 			 Animals AnimalsRare fossils expand evolutionary history of sperm whalesA pygmy fossil unearthed in Panama reveals that the organ the whales use to produce sound and echolocate shrunk over time. 
- 			 Paleontology PaleontologyThis dinosaur’s ride may have been a glideA new dino called Yi qi may have taken to the skies with wings akin to those of pterosaurs and flying squirrels. 
- 			 Paleontology Paleontology‘Frankenstein’ dinosaur was a mash-up of meat eater and plant eaterFossils of a bizarre-looking dinosaur found in Chile are challenging ideas about how dinosaurs adapted to their environments. 
- 			 Paleontology PaleontologyYour toy stegosaurus may be a girlMale and female stegosaurs may have looked different, a new study finds. 
- 			 Paleontology PaleontologyFossil reveals terror bird’s powerBones of a new terror bird confirm the creatures used their beaks to hatchet their prey but also raise questions about what drove the birds extinct. 
- 			 Paleontology PaleontologyTyrannosaurs fought and ate each otherEvidence from a tyrannosaur skull and jaw fossils add to the argument that the ancient reptiles fought and weren’t above scavenging their own. 
- 			 Paleontology PaleontologyBrontosaurus deserves its name, after allBrontosaurus belongs in a genus separate from Apatosaurus, a new study proposes. 
- 			 Anthropology AnthropologyFootprints offer clues about daily hominid lifeEarly male members of the human genus spent a lot of time together by the water, as their footprints attest. By Bruce Bower
- 			 Paleontology PaleontologyFossil of monstrous fish-eating amphibian unearthedA new Triassic species of giant amphibian lived like a crocodile instead of like its cute little salamander and frog relatives of today. By Susan Milius