Virological evidence cannot prove transmission in HIV criminal cases, warn experts in this week’s BMJ. Viral phylogenetics provides a way of assessing the relations between viruses from different…

Apes bite and try to break a tube to retrieve the food inside while children follow the experimenter's example to get inside the tube to retrieve the prize, showing that even before preschool,…

Because spies have online lives too: they get their own social network.

Here are nine of the smallest, faintest, most compact galaxies ever observed in the distant universe. Blazing with the brilliance of millions of stars, each of the newly discovered galaxies is a…

As someone who fantasizes about shooting a paint gun at Hummers and other suburban attack vehicles to mark them as hazards to planetary health, I recently succumbed to the most scandalous vacation…

In this sixth installment of our on-going series of interviews with some of the leading thinkers and scientists on the subject of energy, we interview Howard Bloom. Facing and solving the multiple…

It’s well known that the child’s brain has a remarkable capacity for change, but controversy rages about the extent to which such plasticity exists in the adult human brain -- particularly, in the…

A new study led by the University of Colorado at Boulder indicates biologists trying to save Colorado's native greenback cutthroat trout from extinction over the past several decades through hatchery…

Physicists at the University of Michigan have coaxed two separate atoms to communicate with a sort of quantum intuition that Albert Einstein called "spooky." In doing so, the researchers have made an…

Rheumatoid arthritis (RA) and systemic lupus erythematosus (Lupus) are considered autoimmune inflammatory diseases, where the body’s immune system attacks healthy tissue. In RA, the immune system…