Category archives: Weekly Selection

A switch for internal, external brain processes Researchers have observed how the brain switches between internal and external information processes in mice. Scientists manipulated thalamic reticular nucleus cells to get the mice to switch information systems. Researchers hope the study could lead to treatments for people with autism or schizophrenia, whose brains have difficulty with […]

Glowing sharks living in dark depths evolve special vision Some species of bioluminescent sharks that live in the darkest depths of the ocean have eyes that have evolved to detect complex patterns of light to communicate with each other, locate prey or hide themselves. Researchers found that the eyes of bioluminescent sharks provide better resolution […]

Gene-editing method could remove HIV from infected cells Scientists have found a way of eliminating HIV from infected cells. Using the CRISPR/Cas9 genome-editing system, researchers removed a fragment of the virus. “These properties may provide a viable path toward a permanent cure for AIDS, and provide a means to vaccinate against other pathogenic viruses,” they […]

Common traits in tame animals may be due to neural crest changes Genetic changes that may affect a group of embryonic stem cells known as the neural crest may produce a specific set of features in animals bred for tameness. Common features and behaviors in domesticated animals include patches of white fur, floppy ears, youthful […]

The role of turbulence in the formation of stars A pair of recent studies sheds new light on turbulence, a factor in the formation of stars when galaxies collide. In one study, researchers simulated the collision of two Antennae Galaxies and found that the collision produced “compressive turbulence,” which could get fusion started by pushing […]

Universal formula for cosmic voids A simple equation can describe the large-scale bubbles that appear in the dark matter distributed throughout the Universe, and it applies to voids of a wide range of sizes and ages. Physics Bone-house wasps use ant carcasses to build nests for their young Deuteragenia ossarium, or the bone-house wasp, is […]

Looks like a mouse but is genetically related to elephants A tiny, long-nosed creature found in western Africa looks like a mouse, but is genetically closer to an elephant, according research published in the Journal of Mammalogy. Biologists who discovered the new species of elephant shrew call it Macroscelides micus. It lives in an ancient […]

Hidden portrait lies behind Picasso’s “Blue Room” Scientists using infrared technology have revealed a portrait of a bearded man resting his head on his hand underneath Pablo Picasso’s 1901 painting “The Blue Room.” Picasso often reused canvasses because he couldn’t afford new ones, according to art experts. Two years ago, another portrait was found underneath […]

Identified a new type of stone formed by plastic Discarded plastic has created a new type of stone, mixed with other materials, both natural and manufactured. The strange plastiglomerate formations were first discovered in 2006 on a polluted beach area in a remote part of Hawaii’s Big Island, but the significance of the find wasn’t […]

Handwriting is key for educational development Handwriting is starting to fade from the curriculum of many schools, but experts say the practice is important for educational development. The New York Times Superbugs use genetic material as cloak to avoid detection A deadly class of antibiotic-resistant bacteria called carbapenem-resistant Enterobacteriaceae, carries genetic material that serves as […]