[3] The size of the diamond-shaped anterior fontanelle has a wide range of normal, from 1 to 4 cm by 1 to 2.5 cm, and usually closes before 2.5 years of life. The triangular-shaped posterior ...

A curtain opens on a stage to reveal different shaped animated characters - a sphere, a cube and a pyramid. NARRATOR: It's crunch time for the 3D crew. And who's going to take home the coveted ...