How Do Fish Sleep?

Marine animals sleep underwater... but how?!

Read More:
Animal sleep: a review of sleep duration across phylogeny.
"Sleep duration and placement within the twenty-four hour day have been primary indices utilized in the examination of sleep function. It is of value, therefore, to evaluate these variables in a wide range of animal species."

How do whales and dolphins sleep without drowning?
"Marine mammals such as whales and dolphins spend their entire lives at sea. So how can they sleep and not drown? Observations of bottlenose dolphins in aquariums and zoos, and of whales and dolphins in the wild, show two basic methods of sleeping: they either rest quietly in the water, vertically or horizontally, or sleep while swimming slowly next to another animal."
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[pieceofpotato]

am I the only one who searched how do fish sleep in the middle of the night?

[ankitchauhan]

This is what I watch at 2 AM when I'm alone and unable to sleep

[ullseye]

I got one - why do so many different things taste like chicken?

[parduek]

"Looked at how they sleeped"

[NocturnalPyro]

All this talk about sleep made me tired, I'm going to bed now.

[AtrixInfinite]

4:09 It keeps *water flowing, not air

[connor]

Why does she remind me of Moira Brown from Fallout 3.

[Pryde]

My daughter loved this one. She is fascinated by marine biology and specifically dolphins.

I was wondering if you could do a piece on the recent contamination of the Animas River here in Colorado?

[rollierolled]

My cousin works at sea world-gold cost australia, when she saw a dolphin “logging” she freaked out and ran to her friend which then they both freaked out telling everyone a dolphin had died. I wish i saw the look on her face when she saw it swimming happy and healthy.

[judeharrison]

Why do humans hunt for fun. Shouldn't we find it repulsive to watch a harmless animal die

[roofoochoo]

Can you make a video about sponges lol

[kyoai]

If some fish continue swimming while sleeping, do some fish keep bumping into obstacles or do their eyes notice obstacles and make the sleeping fish swim around them?

[MrKlonkie_official]

I guess this redefines "sleeping with the fishes".

[brittneyspencer]

When were cats domesticated and how are they able to purr?

[Xyclopzz]

Me when watching my dad's aquarium thinking.. "How do they sleep?"

[schwullhund]

How do fish gills work? Why can't fish breathe the air?

[Average.Piano.Player]

so today my son asked this question and I realized that I have never thought about it lol

[tiajoseph]

I remember the day I got the chance to pet a shark at the aquarium. It was a baby one of course. But it was still cool.

[millygacha]

I think I saw my pet goldfish blink....

[InferiorGamer]

0:30

"Sleept" lol. I think you mean 'Slept'.