More Egg Facts

Most eggs are not egg-shaped. Hummingbirds lay eggs that look like Tic Tacs, owls lay almost perfect spheres, and sandpipers lay almost conical eggs that end in a rounded point. Swift eggs are pointed, more like pine nuts than Tic Tacs. The most common shape, exemplified by a songbird called the graceful prinia, is more pointed than a chicken’s. Eggs of 1,400 bird species had measurements extracted from 50,000 photos. It revealed the left-field nature of chicken eggs.

Incidentally, if you dissolve an egg shell in acid, the naked egg will still retain its original shape due to the internal membranes.