Entry: crepuscular (adj.)
In context: "Crepuscular animals rustled and perhaps scuttled."
Definition: Zool. Appearing or active in the twilight.
Other: A great word. Its texture accords well with its meaning - even before looking it up, I had the definite sense that you wouldn't really want a crepuscular animal sitting in your lap.
SNOOT score: 3
Source: Oxford English Dictionary