Whales use to sleep but as they are mammals they also have lungs and they use to breathe under the surface of the water. But when they don't have enough CO2 concentration they use to have sleep.
They don't start breathing until the CO2 levels are significantly greater than what humans can take, according to their brains. These processes, which are a component of the marine mammal diving response and aid in the sleeping process, are adaptations to living in an underwater environment.
Our involuntary respiratory system allows us to breathe even while our conscious mind is asleep. If an Orca were to fall asleep in the same way we do, it would be at risk of drowning.
For more questions like Sleep of Whales visit the link below:
https://brainly.com/question/15119745
#SPJ4
