Some creature or creatures regularly (sunrise and sunset, summer and winter, lunar phases) or irregularly (solar and lunar eclipses, eschatological events) attack the luminaries or shade their light
The primeval ancestors (usually birds and animals) participate in discussion concerning the desired predominance or wamth/light or cold/darkness, number of the units of time in a tempoi cycle, etc.
Inhabitans of the Middle World are (partly) destroyed (or will be destoyed) once by fire or draught, another time by a flood or the world is destroyed with a flood of fire or boiling water
Person who conceals his or her identity comes to his or her lover (at night). Next time, the lover puts a mark on the stranger's face, body or clothes doing this intentionally (to recognize him or her) or by chance (that leads to the identification)
Person does something that makes death inevitable because the death of a child or a woman beloved by another person is indifferent or desirable for him or her
Person has a series of suggestions how to make the world easy for living and free of hard work and death. His companion successively rejects them. Their dialogue forever defines conditions of human life
Reptiles or invertebrates possess the medicine of immortality; are contrasted with men as immortal with mortals and/or are responsible for originating of death; or a snake's bite inflicts the first death
An ugly, old, lazy, etc. woman or (in Chaco) a male trickster comes to man under disguise of his wife or bride who is driven out, confined to the underworld, killed, etc.
Bird-woman is energetically searching a man whom she likes, takes him by force for her husband. Turning into a monster, she kills men but is ultimately destroyed