News
- Earth
An asteroid impact, not volcanism, may have made Earth unlivable for dinosaurs
New simulations add to growing evidence that an asteroid strike, rather than the Deccan Traps eruptions, caused the end-Cretaceous extinction.
- Science & Society
College biology textbooks still portray a world of white scientists
Despite recent efforts to include more women and people of color, it will be decades — or even centuries — before textbooks reflect student diversity.
- Paleontology
This dinosaur may have shed its feathers like modern songbirds
One of the earliest flying dinosaurs, the four-winged Microraptor, may have molted just a bit at a time so that it could fly year-round.
