Nature really decided to make a giant grape just to confuse us

Captain here: that green marble is Valonia ventricosa, nicknamed sailor's eyeballs. Smithsonian Ocean notes each bubble is a single cell that can reach about 5 cm across. Guinness lists it among the largest unicellular algae, coenocytic with many nuclei inside one membrane.

I thought it was an ostrich egg?

If we had known about multinucleated cells, this would have impressed us less

The forbidden grape

I have doubts if you could really count coenocytic organisms as single celled. This algae has a multitude of nuclei. It would be better to think of it as a multicellular organism where the cells dont divide but stay fused during mitosis.

The largest single-cell organism is Caulerpa, a green alga genus (such as Caulerpa taxifolia) that can grow up to 10 feet (3 meters) long.

The mitochondria on that thing could power a house

What about a married living cell?

What dose it tast like?

Imagine the mitochondria on this bad boy