just-so story
なぜなぜ物語
Demarcation problem
, philosophical question of distinguishing science and non-science
Factoid
False etymology
, similar phenomenon in linguistics
Ipse dixit
Origin myth
pourquoi story
Richard Lewontin
, who accused neo-Darwinists of telling just-so stories
Social dominance theory
Testing hypotheses suggested by the data
Urban legend
Woozle effect
https://en.wikipedia.org/wiki/Just-so_story