The sperm and the egg cell's nuclei compete for size directly after fertilization and this is necessary for proper embryonic ...

Apr. 29, 2026 A massive prehistoric snake discovered in India may rank among the largest ever to slither across Earth. Named Vasuki indicus, this ancient giant lived around 47 million years ago and is ...

Each month during a woman's menstrual cycle, an ovary prepares 10–20 antral follicles, fluid-filled sacs that hold immature ...

If you could save lives by producing vaccines in transgenic bananas, would you? In the debate over large-scale commercialization and use of GMOs, where should we draw the line? Vaccines Tobacco ...