When sleeping, dolphins may rest immobile on the surface of the water and breathe regularly or swim very slowly and steadily near the surface of the water. In shallow waters, dolphins may sleep on the ocean floor and regularly rise to the surface and breathe.
How do Indus river dolphins sleep?
Indus river dolphins sleep differently from other dolphin species. Living in water with strong currents and potentially dangerous floats, you need to swim continuously to avoid injury. As a result, this species sleeps in very short bursts lasting 4-60 seconds.
How long do Indus river dolphins usually sleep?
One of the blind dolphins that lives in the muddy waters of the Indus River in Pakistan cannot afford to spend such a long time with half of its brain asleep. Instead, you can catch a "micro nap" that lasts only 4-6 seconds, but in total you get 7 hours of sleep per day!
Why do dolphins sleep upside down?
These fascinating creatures sleep upside down and help them fly away if a threat appears while they sleep. In most cases, it looks upside down because it is not strong enough to take off and fly from a standing position.
Do dolphins sleep?
Dolphins generally sleep at night, but only a few hours at a time. They are often active late into the night, probably feeding on fish and squids in line with this alert period, which rises from the deep sea.
Below you will find two helpful answers on a similar topic. 👇
Why do dolphins live in the Indus River?What animal blood is closest to humans?
