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
The Mouse, the Bird, and the Sausage The Mouse, the Bird, and the Sausage "The Mouse, the Bird, and the Sausage" () is Tale 23 of the Grimm's Fairy Tales. It is Aarne-Thompson number 85. The Mouse, the Bird, and the Sausage live happily together. The Bird brings home wood from the forest; the Mouse delivers water, makes the cooking fire, lays the table; and the Sausage cooks. One day, the Bird has a chat with some other birds. They make fun of the Bird, saying that it was doing all the work and that he was like a slave. The next day, the Bird suggests that