Plague may have caused die-offs of ancient Siberians

Lake Baikal

Ancient people brought the plague to Siberia by about 4,400 years ago, which may have led to collapses in the population there, a new genetic analysis suggests. That preliminary finding raises the possibility that plague-induced die offs influenced the genetic structure of northeast Asians who trekked to North America starting perhaps 5,500 years ago. If […]

Modern microbes provide window into ancient ocean — ScienceDaily

Step into your new, microscopic time machine. Scientists at the University of Colorado Boulder have discovered that a type of single-celled organism living in modern-day oceans may have a lot in common with life forms that existed billions of years ago — and that fundamentally transformed the planet. The new research, which will appear Jan. […]

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Chinese scientists uncover gene for rice adaption to low soil nitrogen

IMAGE: a. OsTCP19-H is significant correlated with soil nitrogen content. b-f. OsTCP19-H significantly increases grain yield and NUE under LN and MN conditions. view more  Credit: IGDB Chinese scientists from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences (CAS) have found a gene that plays an important role in helping rice […]

A third of U.S. families face a different kind of poverty

Credit: CC0 Public Domain Before the pandemic, one-third of U.S. households with children were already “net worth poor,” lacking enough financial resources to sustain their families for three months at a poverty level, finds new research from Duke University. In 2019, 57 percent of Black families and 50 percent of Latino families with children were […]

Severe allergic reactions to COVID-19 vaccines are rare, CDC says

Out of the first 1.9 million doses of Pfizer’s COVID-19 vaccine administered in the United States, there were 21 reported cases of severe allergic reactions to the vaccine, the Centers for Disease Control and Prevention said January 6. The rate of anaphylaxis seen so far — 11.1 cases per 1 million vaccine doses — is […]

How the Trump border wall sapped a desert oasis dry

A newly built section of the US-Mexico border wall lines the entire southern edge of Organ Pipe Cactus National Monument in Arizona, where a crucial spring system was drawn up for construction. (Jerry Glaser/U.S. Customs and Border Patrol/) Amidst the towering saguaro and pronged organ pipe cacti of southern Arizona’s Sonoran Desert, a 30-foot-tall fence […]

Neuronal circuits for fine motor skills

IMAGE: Eating spaghetti requires a high level of fine motor skills. view more  Credit: University of Basel, Biozentrum Writing, driving a screw or throwing darts are only some of the activities that demand a high level of skill. How the brain masters such exquisite movements has now been described in the journal “Nature” by a team […]