Your mom’s breast milk was made just for you. Scientists have found that the milk mothers produce can vary in content and quantity depending on the baby’s gender, ABC Science reports. For instance, more liquid is often produced for girls, whereas boys get a substance that’s richer in fat or protein. Researchers are still uncertain why this occurs, but they suggest that male monkeys—who also receive gender-specific milk—get a more energy-packed substance because they spend more time away from mom playing.
See more Signal/Noise.