The sperm race may be more of a team sport, with evolution repeatedly favoring microscopic cooperation. Credit: Stock. A new study by Syracuse University biologists examines how c ...

Human fertility hinges on a delicate molecular ballet that begins even before birth. UC Davis researchers have uncovered how special protein networks safeguard chromosomes as eggs and sperm form, ...

ARLINGTON, Va.--For the first time, researchers using laboratory techniques alone and no animal hosts have isolated sex-cell precursors from mouse embryos, coaxed the cells into a sperm-like form, ...

The exceptionally long sperm of fruit flies are able to fit in their small storage organ by swimming in opposite-direction lanes, new experiments show. This snapshot shows fluorescently labeled sperm ...