Modern wolves and dogs have similar, homogenous genetic histories that tell a story of eastern European wolf dominance. But a closer look at their genes reveals that there’s another wolf population that contributed to modern wolves and dogs, one from western Europe. It’s possible that the two wolf populations co-mingled when eastern European populations were brought in by humans. This could explain why fossils of many different kinds of wolves seemed to disappear and be replaced by a single ancestor that looked like all of them. Read full article here
Science
‘Ghostly’ neutrinos provide new path to study protons
In groundbreaking research, an international collaboration of scientists from the University of Rochester have used a beam of neutrinos to measure the size and shape of the protons that make up the nuclei of atoms. This feat, once thought impossible, provides scientists with a new way of looking at the small components of an atom’s nucleus and opens up a wealth of new information about the structure of an atom’s nucleus and the dynamics of the forces that affect neutrino interactions. The researchers solved the challenge of harnessing neutrinos in large numbers by using a neutrino detector containing a target of both hydrogen and carbon atoms, and over nine years of data collection at Fermilab’s accelerator. Read full article here
Merv
March 25, 2023
