Sleeping...
An underwater night shot. The fish is asleep, but still aware of the surrounding via its lateral sensors* which help the fish maintain distance from objects. Read more
An underwater night shot. The fish is asleep, but still aware of the surrounding via its lateral sensors* which help the fish maintain distance from objects.
Where there are no such objects, like on some flat sandy bottom, the fish will find or create a small concave depression in the sand, and sense this shape while hovering over it, even asleep.
Such behavior is not unusual to see during night dives.
* https:--en.wikipedia.org-wiki-Lateral_line
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Where there are no such objects, like on some flat sandy bottom, the fish will find or create a small concave depression in the sand, and sense this shape while hovering over it, even asleep.
Such behavior is not unusual to see during night dives.
* https:--en.wikipedia.org-wiki-Lateral_line
Read less
Oct, 2016Views
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