Cubone Poke’dex entry:
Cubone pines for the mother it will never see again. Seeing a likeness of its mother in the full moon, it cries. The stains on the skull the Pokémon wears are made by the tears it sheds.
Phantump Poke’dex entry:
According to old tales, these Pokémon are stumps possessed by the spirits of children who died while lost in the forest.
-by BreakingReflections (aka blankpagemod)