Bakunawa

In multiple regional tales the Bakunawa is a great bent serpent or dragon that rises from the sea or inhabits the sky/underworld and attempts to swallow the moon, producing lunar eclipses. Variants narrate different motivations and relations — for example, mourning the death of a sister turtle, vengeance for the loss of a human lover, or rivalry with other cosmic beings — and some localized accounts add punitive actions by supreme deities (e.g., Visayan narratives where gods intervene). These variants reflect regional diversity rather than a single uniform origin account.

Descriptions vary across sources and regions. Commonly depicted as a large curved serpent or dragon-like sea-serpent; some accounts mention a looped tail and occasionally a single horn, while other regional renderings add whiskers, wings, or even bird- or lion-like features. Oral variants also imagine sky-inhabiting, flying, or terrestrial forms and, in some stories, a gigantic mobile landmass-like being with inhabitants on its back.

Primary cosmological action is to eat or swallow the moon, which explains lunar eclipses. It is also credited in sources with causing earthquakes, rains, and winds in some accounts, and in certain tales it is said to consume humans. The Bakunawa's movements were historically integrated into geomantic calendrical practice and featured in rites performed by babaylan ritual specialists. Communities respond to its eclipsing activity with coordinated ritual actions.