Sun‑aided dinosaur incubation

A physical simulation of oviraptor nests (model dinosaur + resin eggs + thermometers) indicates some birdlike dinosaurs relied on ambient and solar heat rather than constant brooding, producing temperature gaps in cooler conditions but negligible differences in warmer climates. The result suggests Late Cretaceous warmth enabled a ‘co‑parenting’ strategy with the sun, not continuous parental contact. — Showing that climate sets fundamental limits on parental strategies links paleobiology to present concerns about how modern climate change raises demands on parents and alters life‑history behaviors.