Whether fish sleep is an intriguing question, to the point of having inspired the
title of several popular science books. In birds and mammals, sleep is defined by
eye closure and the presence of .....
Apr 23, 2014 ... They are sleeping, and they can sleep at any time during the day or night. Fish do
sleep with their eyes open, because they don't have eyelids ...
Mar 4, 2008 ... You can see this in a fish tank or aquarium – some float motionless in place,
some float ... fishe sleep but don't close there eyes the only shut do.
www.ask.com/youtube?q=Do Fish Sleep with There Eyes Open?&v=z6pQvWZemVc
Aug 3, 2009 ... Science...the final frontier. Scientific study to see if fish do actually sleep.
Evidently they do. This video is in the name of science. Don't be a ...
How in the name of God do fish sleep when they are surrounded by water all the
time? Of course, they ... Therefore, they sleep with their eyes open! This has led ...
Apr 19, 2009 ... Answer to the science question: Why don't fish have eyelids? ... How long do they
sleep and how can they rest if their eyes never close?
Do goldfish sleep with their eyes open? Do goldfish sleep at night ... The answer
is that goldfish do sleep, but not in the same way we do. Goldfish sleep is more ...
... their eyes open. If they are not moving, it is difficult to tell whether snakes are
awake or asleep. ... Snakes have no eyelids, so they can never close their eyes
or blink. Instead of ... Structure of a Fish's Eye · How Often Do Rattlesnakes Sleep
Fish live in water, and so the eye does't need moistening, and so fish don't have
eyelids. Thus they sleep with their eyes open because they have no way to ...
Goldfish don't have eyelids, so when sleeping it can appear that they are just
being... ... Because goldfish have no eyelids, they sleep with their eyes open.