The canonical “alien” archetype: small, large-headed, large-eyed beings. The drawings in Bob Lazar’s S4 briefing documents (single internal organ, chest cut open) most closely match this archetype, though Lazar himself never saw a living one.
Connections
Zeta Reticulans · Zeta Reticuli · Bob Lazar · Betty and Barney Hill · Extraterrestrial Hypothesis