If you live in Australia, you may not realize how unique and special the birds around you are. The continent was perhaps the most important for the evolution of modern birds, with a majority of the world’s species tracing their ancestry here.
A team of researchers from Universidad Carlos III de Madrid, the Universidad de Extremadura and the Universidad de Sevilla have defined a theoretical framework that could explain the Mpemba effect, a counterintuitive physical phenomenon revealed when hot water freezes faster than cold water.
New research via the National Center for Health Statistics shows the US fertility rate is at a record low. With the exception of the over-30 crowd, fewer women across almost all age groups and ethnicities are having babies.