Rie Natsume and her collaborators have recently developed an innovative and cost-effective method for generating rats that ...

Scientists found microplastics in fluids around human eggs and sperm. Plastics from cookware and packaging affect human ...

After struggling to get pregnant for nearly two decades, one couple has finally conceived with assistance from artificial ...

Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...