2006-08-16 20:36:03 · 7 answers · asked by outtamyhouse1 2 in Science & Mathematics ➔ Zoology
...In the sleep cycle, half of the dolphin's brain does indeed "shut down" while the other half is still active. Researchers have observed that dolphins are in this state for approximately eight hours a day.
We can't really know what this rest state feels like, but we can make a good guess. It is probably something like the semi-conscious state we experience as we begin to fall asleep. We're pretty close to unconsciousness, but are aware enough of our surroundings to wake up completely if we need to.
And where do dolphins and whales sleep? They could probably sleep anywhere, but it makes sense that they would do it near the surface of the ocean so they can come up for air easily.
It's not uncommon to see dolphins "logging," swimming slowly along the surface, with very little movement.
Presumably, these are dolphins at rest.
2006-08-17 07:25:37 · answer #1 · answered by Susan seaside 3 · 0⤊ 0⤋
They have to surface for air every minute or two; probably do not get much sleep
2006-08-16 22:33:53 · answer #2 · answered by littleredms 4 · 0⤊ 0⤋
I'm pretty sure they do....they're not like sharks that must continuously swim in order to stay alive. I'm not really sure when are how, but they are mammals so, yes.
2006-08-16 21:04:04 · answer #3 · answered by DikkiJones 3 · 0⤊ 0⤋
Yes, but only with half a brain at a time, and they don't dream.
2006-08-16 20:44:29 · answer #4 · answered by Beckee 7 · 0⤊ 0⤋
yes...i think...every living things sleep...
2006-08-16 20:43:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i think all or most identified creatures do sleep... Worms just dont...
2006-08-16 20:41:38 · answer #6 · answered by Anonymous · 0⤊ 0⤋
they sleep with one eye open....
2006-08-16 20:47:46 · answer #7 · answered by beast boy 2 · 0⤊ 0⤋