Acrolophus vitellus is a moth of the Acrolophidae family.

The words vellum and veal come from Latin vitulus, meaning calf, or its diminutive vitellus.

Oviparity: fecundation is internal, the female lays zygotes as eggs with important vitellus (typically birds)

At the time, the garrison of Colonia Agrippina was under the generalship of Marcus Vitellus.

Protesilaus telesilaus vitellus (Brazil: Paraná, Santa Catarina)

Bird and reptile eggs consist of a protective eggshell, albumen (egg white), and vitellus (egg yolk), contained within various thin membranes.

Vitellogenin (VTG or less popularly known as VG) (from latin vitellus, yolk, and gener, to produce) is a synonymous term for the gene and the expressed protein.

Lyncina vitellus, common name : the Calf Cowry or the Pacific Deer Cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.

Most eggs that are eaten by humans, including birds' eggs and turtle eggs, have a protective, oval eggshell, the albumen (egg white), the vitellus (egg yolk), and various thin membranes, that are layers like skin.