Your brain expands and shrinks over time — these charts show how
Based on more than 120,000 brain scans, the charts are still preliminary. But researchers hope they could one day be used as a routine clinical tool by physicians.
Based on more than 120,000 brain scans, the charts are still preliminary. But researchers hope they could one day be used as a routine clinical tool by physicians.
Andrew Robinson reviews five of the week’s best science picks.
The pathogen responsible for the continuing seventh cholera pandemic typically lacks self-replicating plasmids. Genetics, cell biology and bioinformatics analyses have identified two DNA-defence systems that protect bacterial populations from plasmids and bacteriophages, and that might have shaped the evolution of modern Vibrio cholerae.