Tag Archives: avian

Vocal Learning Avians

An international team of scientists led by Flinders University has found evidence of prenatal auditory learning in embryos of three vocal learning species (superb fairy-wren, red-winged fairy-wren and Darwin’s small ground finch) and two vocal non-learning species (little penguin and Japanese quail). Colombelli-Négrel et al. demonstrate a capacity to perceive …

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Avian Brain Shape

A team of paleontologists has digitally reconstructed the facial skeleton and brain endocast of Ichthyornis dispar, a toothed stem bird that lived in North America during the Late Cretaceous epoch and has traditionally been considered the nearest known well-understood relative of living birds. The ancestors of living birds had a …

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Avian Brain Shape Dinosaurs

A team of paleontologists has digitally reconstructed the facial skeleton and brain endocast of Ichthyornis dispar, a toothed stem bird that lived in North America during the Late Cretaceous epoch and has traditionally been considered the nearest known well-understood relative of living birds. The ancestors of living birds had a …

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Non Avian Dinosaur

Although paleontologists know now much about dinosaurs and their appearance, they have not known anything about how their cloacal region — the all-purpose opening used for defecation, urination and breeding — appears. Paleontologists from the United Kingdom and the United States have now described the cloacal opening of Psittacosaurus, an …

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Non Avian Dinosaurs

A new analysis of non-avian dinosaur diversity shows they were not in decline and were still capable of generating new species at the time of their extinction by the Chicxulub asteroid hit 66 million years ago (Cretaceous period). Bonsor et al. refute claim that non-avian dinosaurs were in decline before …

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Eggs of Non-Avian Dinosaurs Took 3-6 Months to Hatch

Non-avian dinosaur eggs took a long time to hatch — between 3 and 6 months, according to new research on the teeth of fossilized dinosaur embryos. Herds of female titanosaurs gathered at traditional nesting grounds 80 million years ago in what is now Patagonia, Argentina. Image credit: Luis Rey / …

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