What animal is Gemini?

Gemini is the Twins rather than a single animal, but popular associations include the magpie and parrot for their social-pair behavior. Castor and Pollux are the Greek Dioscuri, sons of Leda (see our swan page for the Zeus-as-swan context).

Gemini · Zodiac Spirit Animal

Gemini Spirit Animal

Gemini the Twins: Babylonian origins as MASH.TAB.BA.GAL.GAL ('Great Twins'), Greek Castor and Pollux (Dioscuri), and the modern zodiac-animal associations.

Published 2026-04-24

Engraved illustration of the Twins (Gemini) from Chambers's Twentieth Century Dictionary, 1908. — Gemini the Twins, from Chambers's Twentieth Century Dictionary (1908). The constellation represents Castor and Pollux (Dioscuri); they appear as patron deities of sailors in Euripides's Helen (c. 412 BCE) and in Pliny's Natural History (2.101). *Chambers's Twentieth Century Dictionary (1908). Public domain via Wikimedia Commons.*

Gemini is the Twins (May 21 – June 20, Air element). Babylonian MUL.APIN attests MASH.TAB.BA.GAL.GAL ('Great Twins'). The Greek identification is Castor and Pollux (the Dioscuri), sons of Leda and Zeus-as-swan (Leda's twins include Helen and Clytemnestra in the female line). Homeric Hymn 33 and Pindar Nemean 10 preserve the Greek mythological backstory.

Gemini is the Twins, Castor and Pollux (the Dioscuri). Babylonian MUL.APIN’s MASH.TAB.BA.GAL.GAL (“Great Twins”) is the origin. See our swan page for the Zeus-as-swan / Leda backstory that produces the twins.

Frequently asked

What animal is Gemini?: Gemini is the Twins rather than a single animal, but popular associations include the magpie and parrot for their social-pair behavior. Castor and Pollux are the Greek Dioscuri, sons of Leda (see our swan page for the Zeus-as-swan context).

Sources

PRIMARYMUL.APIN (MASH.TAB.BA.GAL.GAL) — Hunger & Pingree, 1989.
PRIMARYHomeric Hymn 33 (to the Dioscuri) — Loeb Classical Library.
PRIMARYPindar, Nemean 10 — Loeb Classical Library.
PRIMARYPtolemy, Tetrabiblos — Loeb Classical Library.