Most all fish spend time in an energy-saving state that can be called
"rest", and we might even call their behavior "sleep", though it is probably
different than "sleep" in most land
animals. Many fish, like Bass and perch, rest on or under logs at
night. Coral reef fish active in the day, hide and rest in crevices
and cracks in the reef to avoid being eaten at night.
The resting behavior of fish is very different from their behavior the
rest of the day. Many minnows, for example, which are very active in
schools during the day, scatter and remain motionless in shallow
water at night. Many fish "rest" or "sleep" during the day and are
active at night instead, but almost all fish sleep.
There are some animals that never stop swimming, like many species of
shark, however, they HAVE to keep moving to push water through their mouths
in order to breathe, and they may still sleep while moving,
we just don't know yet.
2006-07-03 19:53:43
·
answer #1
·
answered by highlander44_tx 3
·
0⤊
0⤋
Yes fish sleep
2006-07-04 13:31:53
·
answer #2
·
answered by Anonymous
·
0⤊
0⤋
I LOVE this question.
It all depends on your definition of sleep.
If you say sleep is when you close your eyes and rest, then fish cannot sleep; fish do not have eyelids. AND fish do not actually go into a state of unconsciousness. They become less aware of things going on around them, but their lil' brain signals are still firing on all cylinders.
So they rest and sleep., but in a much different form than humans.
2006-07-10 09:06:29
·
answer #3
·
answered by game buddee 3
·
0⤊
0⤋
yes fish sleep without closing their eyes.fish doesn't have eyes like human that can open and close
2006-07-04 12:55:01
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
of course they do! They have to sleep with their eyes open becuase they don't have eyelids. They usually lean on a rock or at the bottom of the tank. They are light sleepers though.
2006-07-04 05:57:50
·
answer #5
·
answered by CB. 5
·
0⤊
0⤋
yes, fishes do sleep.
2006-07-04 23:48:58
·
answer #6
·
answered by Henk 2
·
0⤊
0⤋
Yes
It close it eye and does not move while it sleeping
2006-07-03 19:57:53
·
answer #7
·
answered by HHA 1
·
0⤊
0⤋
they dont they just stay in a state of resting time thats why you see the fish sometimes at the bottom of the tank.its kind of like a state of a coma.
2006-07-04 03:03:50
·
answer #8
·
answered by ricardojimenez0891 1
·
0⤊
0⤋
I doubt it...Even if they could the wouldnt remember it, they only have a memory span of three seconds...
2006-07-03 19:52:38
·
answer #9
·
answered by adam s 3
·
0⤊
0⤋
i think so, either they sleep and they don't close their eyes, or they just don't sleep.
2006-07-06 06:58:28
·
answer #10
·
answered by Anonymous
·
0⤊
0⤋