Wing characteristics of primitive insects unraveled

Mayflies are ancient insects that possess a unique life stage not found in other winged insects: Their fully-grown nymphs develop into a winged subadult stage, the so-called subimago, which is not yet capable of reproduction ...

First genetic causes of Raynaud's phenomenon discovered

Two to five percent of all people are affected by Raynaud's phenomenon: In cold or stressful conditions, the small blood vessels that supply the skin constrict and the fingers or toes turn white. First described by Maurice ...

Ancient Roman coins thought to be fakes now authenticated

A new analysis of several Roman coins unearthed in 1713—long thought to be forgeries—suggests that they are authentic, providing evidence that the leader portrayed on one of the coins was indeed in power during the 260s ...

Study reveals yunnanozoans as the oldest known stem vertebrates

Scientists have long puzzled over the gap in the fossil record that would explain the evolution from invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, and humans, share unique ...

Researcher sets record for quantum chemistry calculation

A researcher from The Australian National University (ANU) has used one of the most powerful supercomputers in the world to predict the quantum mechanical properties of large molecular systems with an accuracy that surpasses ...

New Cretaceous fossil sheds light on avian reproduction

A team of scientists led by Alida Bailleul and Jingmai O'Connor from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences reported the first fossil bird ever found with ...

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