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Male and Female Dinosaurs Were Brooding Together

Brooding dino, bbc planet dinosaurA study into the brooding behaviour of birds has revealed their dinosaur ancestors shared the load when it came to incubation of eggs.
Research into the incubation behaviour of birds suggests the type of parental care carried out by their long extinct ancestors.
The study aimed to test the hypothesis that data from extant birds could be used to predict the incubation behaviour of Theropods, the group of carnivorous dinosaurs from which birds descended.
The paper, out today in Biology Letters, was co-authored by Dr Charles Deeming and Dr Marcello Ruta from the University of Lincoln’s School of Life Sciences and Dr Geoff Birchard from George Mason University, Virginia.
By taking into account factors known to affect egg and clutch size in living bird species, the authors — who started their investigation last summer at the University of Lincoln’s Riseholme campus — found that shared incubation was the ancestral incubation behaviour. Previously it had been claimed that only male Theropod dinosaurs incubated the eggs.
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Alvarezsaurid Eggs Discovered

An Argentine-Swedish research team has reported a 70-million-year-old pocket of fossilized bones and unique eggs of an enigmatic birdlike dinosaur in Patagonia.
“What makes the discovery unique are the two eggs preserved near articulated bones of its hind limb. This is the first time the eggs are found in a close proximity to skeletal remains of an alvarezsaurid dinosaur,” says Dr. Martin Kundrát, dinosaur expert from the group of Professor Per Erik Ahlberg at Uppsala University.
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Oldest Dino Nest

An excavation at a site in South Africa has unearthed the 190-million-year-old dinosaur nesting site of the prosauropod dinosaur Massospondylus-revealing significant clues about the evolution of complex reproductive behaviour in early dinosaurs. The newly unearthed dinosaur nesting ground predates previously known nesting sites by 100 million years, according to study authors.
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Wasps In Dinosaur Eggs

Rotting dinosaur eggs were good eats, as well as home, to numerous scavenging insects, according to a new study in the journal Paleontology.
Jorge Genise of the Argentine Museum of Natural Sciences and colleague Laura Sarzetti came to that conclusion after finding exceptionally well-preserved fossils of insect cocoons in a broken, 70-million-year-old titanosaur egg.
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