A newly identified class of RNA molecules has been discovered in bacteria living inside the human body. These circular genetic structures, termed obelisks, differ from known viruses and bacteria and ...
Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers.
Research into 430,000-year-old fossils collected in northern Spain found that the evolution of the human body's size and shape has gone through four main stages, according to a paper published this ...