Dreams in Animals
REM sleep and the ability to dream seem to be embedded in the biology of many organisms that live on Earth. All mammals experience REM. The range of REM can be seen across species: dolphins experience minimum REM, while humans remain in the middle and the opossum and the armadillo are among the most prolific dreamers.
Studies have observed dreaming in monkeys, dogs, cats, rats, elephants and shrews. There have also been signs of dreaming in certain birds and reptiles. Sleeping and dreaming are intertwined. Scientific research results regarding the function of dreaming in animals remain disputable; however, the function of sleeping in living organisms is increasingly clear. For example, recent sleep deprivation experiments conducted on rats and other animals have resulted in the deterioration of physiological functioning and actual tissue damage of the animals.
Some scientists argue that humans dream for the same reason other mammals do. From a Darwinian perspective dreams would have to fulfill some kind of biological requirement, provide some benefit for natural selection to take place, or at least of have no negative impact on fitness. Antti Revonsuo, a professor at the University of Turku in Finland, claims that centuries ago dreams would prepare humans for recognizing and avoiding danger by presenting a simulation of threatening events. This threat-simulation theory was presented in 2000.
Read more about this topic: Dream
Famous quotes containing the words dreams in, dreams and/or animals:
“However, there is a locked room up there
with an iron door that can’t be opened.
It has all your bad dreams in it.
It is hell.”
—Anne Sexton (1928–1974)
“Live in contact with dreams and you will get something of their charm: live in contact with facts and you will get something of their brutality. I wish I could find a country to live in where the facts were not brutal and the dreams not real.”
—George Bernard Shaw (1856–1950)
“From the oyster to the eagle, from the swine to the tiger, all animals are to be found in men and each of them exists in some man, sometimes several at the time. Animals are nothing but the portrayal of our virtues and vices made manifest to our eyes, the visible reflections of our souls. God displays them to us to give us food for thought.”
—Victor Hugo (1802–1885)