In Jewish mythology, the massive land beast that is Leviathan’s counterpart is Behemoth.
Behemoth appears in the biblical Book of Job as an extraordinarily powerful creature created by God. The text describes its immense strength and presents it as beyond human control. Although some biblical interpretations associate the description with a hippopotamus, later Jewish writings developed Behemoth into a supernatural land monster.
In the 2nd-century BC Book of Enoch, Behemoth lives in a desert while Leviathan dwells in the watery abyss. A third primordial creature, the giant bird Ziz, represents the sky. This land-sea-sky grouping explains why Ziz is a tempting but incorrect option: it is Behemoth’s aerial counterpart, not its land counterpart.
Later rabbinic traditions describe Behemoth and Leviathan battling at the end of time before becoming part of a banquet for the righteous. The name also entered everyday English as a metaphor for anything enormous or overwhelmingly powerful.