🥚 How a Hen Forms an Egg: Oviduct, Shell Calcification and Species Comparison

A 3D translucent cutaway follows a hen's egg through the oviduct in about 25 hours (yolk, albumen, membranes, calcite shell) and compares hen, goose, duck, quail and ostrich eggs with real sizes, allometry and calcium budgets. Change light hours, dietary calcium, vitamin D3 and time in lay to see eggs per week and shell thickness respond.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install