The embryo begins to move, although the mother cannot yet feel it. By the end of the second month, your baby, now a fetus, is about 2.54cm (1 inch) long, weighs about 9.45g (1/3 ounce), and a ...

How the lower jaw - mandible - develops and consequently how and why some developmental birth defects occur is the focus of a five-year, $2.8 million grant to Joan Richtsmeier, distinguished ...