Egg embryo is adequately developed it hatches, i.e. breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering. The largest recorded egg is from a whale shark, and was in size. Whale shark eggs typically hatch within the mother. At and up to , the ostrich egg is the largest egg of any living bird, though the extinct elephant bird and some dinosaurs laid larger eggs. The bee hummingbird produces the smallest known bird egg, which weighs half of a gram (around 0.02 oz). Some eggs laid
Savo Island a bird which lays its eggs here and buries them in the warm sand to incubate. The eggs are excavated by local people and are considered a local food specialty. The eggs are slightly larger than a duck egg and are used for preparing omelettes and other dishes. The first recorded sighting of Savo Island by European explorers was by the Spanish expedition of Álvaro de Mendaña in April 1568. More precisely the sighting was due to a local exploration voyage done by a small boat, in the accounts the brigantine, commanded by Maestre de Campo Pedro de Ortega Valencia