The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Organelles in cells were originally often independent cells, which were incorporated by host cells and lost their independence in the course of evolution. Biologists are now examining the way in which ...

A vaccine's ability to generate long-lasting, high-affinity antibodies hinges on a delicate balance. Upon exposure to a ...