Mammalian fertilisation culminates in the precise merger of sperm and egg membranes, a process orchestrated by an intricate interplay of cell surface proteins and specialised membrane domains. Recent ...

When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show ...

In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures ...