
From feathers and the wishbone to brooding posture, ten pieces of fossil evidence traced in the order they appeared on the path to modern birds.

No single signal predicts an eruption. Scientists combine seismic, ground-deformation, gas, thermal, satellite, visual, and geologic data, and here's how each method works.

Nesting posture, egg arrangement, and eggshell pores separate what fossils confirm from what remains inference about dinosaur parenting.

Growth rings in bone and embryos still in their eggs show young dinosaurs weren't just small copies of the adults they became.

How armor, spikes, size, and herding may have cut predation risk β and where the debate still stands.

Tooth wear, claw angle, bite marks in bone β the hunting methods of ten carnivorous dinosaurs can only be cautiously reconstructed from physical evidence, not observed.