title: Egg
context: The largest recorded egg is from a whale shark, and was 30cm ×14cm ×9cm (11.8in ×5.5in ×3.5in) in size.[1] Whale shark eggs typically hatch within the mother. At 1.5kg (3.3lb) and up to 17.8cm ×14cm (7.0in ×5.5in), the ostrich egg is the largest egg of any living bird,[2] 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 0.02oz). Some eggs laid by reptiles and most fish, amphibians, insects and other invertebrates can be even smaller.
question: What bird lays the smallest egg?
answers: bee hummingbird