Boy or Girl?

In general, male skulls tend to be larger and more robust than female skulls. Using a clear profile image from an early ultrasound scan, see if you can get a good look at any of the following features:

• The top of the head is generally bigger and blockier in males, rounder and more tapered in females.
• The curved lines running along the temple are more prominent on males.
• The cheekbone under the eye ridge is more pronounced on males.
• The forehead slopes more on males and is more of a cliff-drop on females.
• The chin is rounder on females, more square on males.
• The eyebrow arch (or “monkey brow”) is slightly bolder on males and typically nonexistent on females.