AND DOCTOR TILLER WAS PROUD TO COLLAPSE THEIR SKULLS:

Babies are found to cry in their mother's tongue: Just days after birth, German and French infants' wails mimicked the patterns of their languages. Researchers believe they started to pick up on the melodies in the third trimester. (Karen Kaplan, 11/07/09, , LA Times)

They may not be old enough to talk, but babies less than a week old know how cry in their native language.

Researchers have known that infants have the ability to mimic speech starting around 12 weeks of age. They also show a preference for spoken language that mirrors the rhythm, melody and intensity patterns of their mother tongue. [...]

The scientists said that fetuses start to pick up on the melody of ambient language during their third trimester in the womb. They can't hear all of the phonetic details of their mothers' speech, but they can perceive the overall patterns or phrases and sentences. Imitating those patterns probably helps newborns endear themselves to their mothers, the researchers theorized.