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Scientists discover two new species of ancient, burrowing mammal ancestors

 E-Mail IMAGE: This portrait shows the tritylodontid Fossiomanus sinensis (upper right) and the eutriconodontan Jueconodon cheni in burrows; both lived the Early Cretaceous Jehol Biota (about 120 million years ago), northeastern China,. view more  Credit: © Chuang Zhao Paleontologists have discovered two new species of mammal-like, burrowing animals that lived about 120 million years ago in what is now northeastern China. The new species, described today in the journal Nature, are distantly related but independently evolved traits to support their digging lifestyle. They represent the first scratch-diggers discovered in this ecosystem. There are many hypotheses about why animals dig into the soil and live underground, said lead author Jin Meng, a curator in the American Museum of Natural History s Division of Paleontology. For protection against predators, to maintain a temperature that s relatively constant not too hot in the summer and not too cold in the win

Nanotechnology Now - Press Release: Scientists observe role of cavitation in glass fracturing

Nanotechnology Now Home > Press > Scientists observe role of cavitation in glass fracturing Fig. 1. Observation of the cavitation-dominated crack propagation in a metallic glass. CREDIT Institute of Physics Abstract: Glassy materials play an integral role in the modern world, but inherent brittleness has long been the Achilles heel that severely limits their usefulness. Due to the disordered amorphous structure of glassy materials, many mysteries remain. These include the fracture mechanisms of traditional glasses, such as silicate glasses, as well as the origin of the intriguing patterned fracture morphologies of metallic glasses. Scientists observe role of cavitation in glass fracturing Beijing, China | Posted on April 2nd, 2021

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