The world's largest cell is the ostrich egg. Ostrich eggs are incredibly large, measuring about 15 cm to 18 cm in length and width.
While an ostrich egg may be the largest single cell by volume, the largest single-celled organism is an aquatic alga called Caulerpa taxifolia. This single-celled organism can grow up to 30 cm in length.
It is important to distinguish between the largest cell by volume and the largest single-celled organism. The ostrich egg is a single cell, but it is a specialized cell for reproduction. Caulerpa taxifolia, on the other hand, is a single-celled organism that is capable of independent life.
