A small reddish-golden Eurasian carp, popular or often kept in fishbowls, ponds and aquariums.
Gloss: people det attention span-wide -> span-short limit-to 15 secs that[bu] cl-equal/same-to[rt] limit attention what-rh goldfish.
English equivalent: Our attention span has shriveled down to about 15 seconds. That puts us on a par with goldfish.
Comment: "I LOVE this sample sentence. That made me laugh out loud." -- Lyn Wiley, March 3, 2017.