The land animal with the largest eyes are those of the ostrich. The diameter of an ostrich eye measured from the center of the cornea at the front of the eye to the center of the retina at the back can be up to **50mm**, which is larger than its brain (no bigger than a walnut), and about twice the diameter of a human eye.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence