In most mammals, males disperse to a new group after reaching sexual maturity. Dispersal often entails costs and is risky. New results from spotted hyenas show that males from the same birth group and particularly twin brothers very often disperse together and choose the same group to breed.
Maryland [US], October 7 (ANI): The arrangement of human retinal cell chromatin, the fibres that wrap 3 billion nucleotide-long DNA molecules into compact structures that fit into chromosomes within each cell's nucleus, was mapped by National Eye Institute researchers. The resultant complet
Paris [France], December 21 (ANI/Sputnik): A new, more contagious, coronavirus strain could already be circulating in France, although it has not showed up yet in genotype tests results, French Health Minister Olivier Veran said Monday.
Washington D.C. [USA], Feb 10 (ANI): In a recent study, MD Minna Sucksdorff from the University of Turku, Finland revealed that alongside genotype, prenatal factors such as vitamin D deficiency during pregnancy, can influence the development of ADHD.