TIL 'crepuscular' means active mostly at dawn and sunset

Today, someone on FaceBook said that cats (domestic ones) are neither nocturnal nor diurnal (active during the day) but crepuscular - active mostly at dawn and dusk.

Since I'm not as much of a wildlife observer and student as I'd like to be, this is new to me. Paul said it sounded like deer might be crepuscular. I wonder if wild cats would also be crepuscular.

Any one else know about critters that are crepuscular?

i prefer anti-crespecular rays, we see em at sunset a couple times a year.

this rainbow site is awesome by the way.. great info on moonbows too...

http://www.atoptics.co.uk/atoptics/anti1.htm

Morgan Morrigan wrote:i prefer anti-crespecular rays, we see em at sunset a couple times a year.

this rainbow site is awesome by the way.. great info on moonbows too...

http://www.atoptics.co.uk/atoptics/anti1.htm

Ooo, I like that very much, too. Could use some light rays of any kind around here these dark, gray Pacific NW days.

Thank you for expanding my vocabulary even further. Now we can sound all science-y and stuff.

Source: http://www.atoptics.co.uk/rainbows/moonbow.htm

Moonbow! That is really cool. Thanks Morgan.

I thought this might be a word my husband did not know but he first corrected my pronunciation and then rattled off the definition...oh, well...can't wait to see moonbow pictures in color on the library computer.