A microscopic structure in mammalian egg cells called a meiotic spindle has one crucial job—and during egg maturation, it has only a few hours to do it properly. What happens in those few hours has ...

The curved shape of a zebrafish egg causes unequal cell divisions, creating larger cells near the animal pole and smaller ...

(BOSTON) — More than one-sixth of adults around the world experience infertility in their lifetime. There is a high unmet need not only for increased access to affordable, high-quality fertility care ...

Life takes shape with the motion of a single cell. In response to signals from certain proteins and enzymes, a cell can start to move and shake, leading to contractions that cause it to squeeze, pinch ...

Cell division is an essential process for all life on earth, yet the exact mechanisms by which cells divide during early ...

Cell division is an essential process for all life on Earth, yet the exact mechanisms by which cells divide during early ...

Life begins with a single fertilized cell that gradually transforms into a multicellular organism. This process requires ...