In this article researchers have discovered that infants are able to respond better to sounds and voices rather than "toys or water". This is do to the increased attention in the temporal lobe. The discovery alone tweaks our understanding of infant development. The brain in the infant cortex is much more developed in the mothers womb than researchers have previously thought.
I found this interesting because I feel it can lead to an advanced way to teach children at a younger age even while in the womb, by using sounds and songs rather than just toys. The study of the early development of babies has also proven that they respond better to human speech like their mothers voices.