GREAT MOMENTS IN SCIENCE: It’s a phenomenon known as superfetation, and while it’s rare, it can happen, says Dr Karl.
From the Blog
GREAT MOMENTS IN SCIENCE: Why are bigger animals such as elephants less likely to get cancer than small animals like mice — and humans? A protective gene called p53 may be the answer, says Dr Karl.
GREAT MOMENTS IN SCIENCE: Don’t let a bad back get in the way of your love life. Dr Karl reviews new research that can help – men, at least.