Shell
Bird eggshells are diverse. For example:
- cormorant eggs are rough and chalky
- tinamou eggs are shiny
- duck eggs are oily and waterproof
- cassowary eggs are heavily pitted
Tiny pores in a bird eggshell allow the embryo to breathe. The domestic hen's egg has around 7500 pores.
Read more about this topic: Bird Egg
Famous quotes containing the word shell:
“I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.”
—Isaac Newton (1642–1727)
“I do not know what I may appear to the world; but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.”
—Isaac Newton (1642–1727)
“Billy: You dropped some shell in there.
Ted: It’s all right. Makes it crunchier that way. You like French toast crunchy, don’t you?”
—Robert Benton (b. 1932)