A study published online today in Nature by Albert Einstein College of Medicine scientists suggests that it may not be possible to extend the human life span beyond the ages already attained by the oldest people on record. Since the...
Silhouette of Ctenochelys acris overlaid with some of the fossils used to reconstruct the species.Credit: Drew Gentry, UAB Several 80-million-year-old fossils found in Alabama are from a species of sea turtle that is the oldest known member of the lineage...
The way the heart muscle functions appears to be much more complex than previously assumed. This is the conclusion of a world-wide study in which data from 73,518 individuals from all across the world were used to search for...
New microscope shows the actin filament orientation in human skin cells, corresponding to the color wheel at bottom left. Credit: Shalin Mehta and Tomomi Tani Scientists at the Marine Biological Laboratory and colleagues have unveiled a new microscope that can...
ANU PhD student Yuzhi Hu with a 3D print of the 400 million year old fish fossil that is six times the size of the specimen. Credit: Australian National University Three-dimensional prints of a 400 million year old fish...
Chromosomal location of the sex-related gene AMH (arrowheads) in male T. osimensis. Chromosomes are double-stained with different fluorescent substances (red and blue) for the precise gene mapping.Credit: Otake T. and Kuroiwa A. Molecular mechanism of male differentiation is conserved...
The brain's biological clock stimulates thirst in the hours before sleep, according to a study published in the journal Nature by McGill University researchers. The finding, along with the discovery of the molecular process behind it, provides the first insight...
Children and teenagers who are obese have different microorganisms living in the digestive tract than their lean counterparts, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism. The study is the first to...
Australia has one of the longest histories of continuous human occupation outside Africa. But who exactly were the first people to settle there? Such a question has obvious political implications and has been hotly debated for decades. The first...
A heat map showing locations of previously unknown DNA variants. Red indicates higher number of discoveries, black fewer.Credit: Harvard Medical School A study of hundreds of new genomes from across the globe has yielded insights into modern genetic diversity and...
Eggs can be 'tricked' into developing into an embryo without fertilisation, but the resulting embryos, called parthenogenotes, die after a few days because key developmental processes requiring input from sperm don't happen. However, scientists from the Department of Biology &...