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Model of a dinosaur egg. Dinosaur reproduction shows correlation with archosaur physiology, with newborns hatching from eggs that were laid in nests. [1] [2] Dinosaurs did not nurture their offspring as mammals typically do, and because dinosaurs did not nurse, it is likely that most dinosaurs were capable of surviving on their own after hatching. [3]
The interior of a dinosaur egg can be studied using CAT scans or by gradually dissolving away the shell with acid. Sometimes the egg preserves the remains of the developing embryo inside. The oldest known dinosaur eggs and embryos are from Massospondylus, which lived during the Early Jurassic, about 190 million years ago. [2] [3]
The small dinosaur eggs, discovered in 2021, represent an entirely new species, due to their unique features. 80-million-year-old dinosaur eggs dug up in China are the smallest ever found Skip to ...
Some proponents of human and non-avian dinosaur coexistence have equated the Mesopotamian mušḫuššu, a legendary chimeric creature, with dinosaurs. Robert Koldewey , the discoverer of the Ishtar Gate in Babylon (which contains depictions of this creature), apparently had such ideas and found it to be similar to how Iguanodon was ...
Scientists have unearthed the first fossils of soft-shelled eggs laid by dinosaurs - two disparate species from Argentina and Mongolia - in a discovery suggesting that the earliest dinosaurs ...
Paleontologists found 100 eggs and 80 skeletons from a dinosaur called Mussaurus at a site in Patagonia, suggesting the animals lived in groups.
In contrast, eggs associated with Oviraptor are only up to 14 cm long. [10] The first oviraptorid eggs (of the genus Oviraptor, which mean "Egg thief") were found in close proximity to the remains of the ceratopsian dinosaur Protoceratops and it was assumed that the oviraptorids were preying upon the eggs of the ceratopsians. [13]
“For over 100 million years when dinosaurs were the dominant predators, mammals were generally small, nocturnal, and short-lived.” The pressure to stay alive eliminated the genes needed for ...