The pituitary gland produces hormones that stimulate the ovaries in girls and the testicles in boys.
Physician Howard Glicksman explains the hugely complex blood flow systems required to keep us clear-headed and alive.
It turned out last week that scientists have been wrong for 350 years about how sperm swim.
As the biomimetics movement accelerates, scientists keep providing more and more examples of intelligent design in organisms great and small.
Getting billions of people to stop eating meat isn’t very realistic, so some have put their hopes in lab-grown steaks made from stem cells.