If they don't have brains then they must not be alive so they dont have to sleep!!! What a stupid question!
Non!
No, plants do not have brains. Only vertebrate animals have brains, although invertebrate animals do have a comparable organ that controls their nervous systems.
Yes. Almost all Mammals and Oviparous have brains. Like Humans.
Monkeys
they all have brains
Some examples of big animals with relatively small brains are elephants, blue whales, and sperm whales. These animals have massive bodies, but their brain size in proportion to their body size is smaller compared to other animals.
If they fully slept, they would drown. Half of their brains sleep at any one time.
We sleep peacefully at night because our bodies and brains need rest to recharge and repair themselves. During sleep, our brains consolidate memories, regulate emotions, and allow our bodies to recover from the day's activities. This peaceful sleep is essential for overall health and well-being.
Yes. All animals have brains.
Of course! All animals have brains, no matter how unintelligent they seem.
dolphins, whales and most turtles are never fully asleep as they need to breathe every so often, they go into a sort of semi sleep where they may reast one hemisphere of their brains at a time but never both together
Mammalian brains evolved from reptilian brains (simply instinctive), develop feelings and can alter instincts through experience.