Dream is still a phenomenon which crosses across both the physical and spiritual worlds of human beings. Just as men, who are imbued with the brain and mind that help to process thought and ideas based on what is perceived or impressed upon them, see dreams during sleep, animals too are believed to stand capable or incapable of having dreams when they sleep. But is this true? That is why the question, do animals dream? All you need to know about animals and the idea of dreaming during sleep.
It’s a complicated question. We still don’t know exactly why humans dream, or why dreams might be important. Studying animal dreams is even harder; dogs can’t tell us what made them whine or run during a snooze. This is why it can be concluded that dreaming gives us a way of extending a number of cognitive capacities to animals; that includes things like emotion, memory, and even imagination.
Physical movement is not the only way of peering into dreams, though. Researchers can now humanely peer into the electrical and chemical activities of brain cells in animals while they sleep.
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Do Animals Dream? All You Need to Know
In an effort to resolve the philosophical conflict posed by the question — do animals dream? all you need to know, this article is therefore focused on animals’ habit of dreaming when compared to human dreaming abilities.
It would appear that not only do men dream, but horses also, and dogs, and oxen; aye, and sheep, and goats, and all viviparous quadrupeds; and dogs show their dreaming by barking in their sleep.
We certainly can’t ask animals if they dream, but we can at least observe the evidence that they might. There are two ways in which scientists have gone about this seemingly impossible task. One is to look at their physical behavior during the various phases of the sleep cycle.
Cat Dreams
Domestic cats were some of the first animals subjected to dream research. Michel Jouvet, a pioneer of sleep studies, uncovered evidence of feline dreaming in the 1960s when he observed cats’ behavior while they slept and then altered it dramatically.
Bird Dreams
In 2000 researchers learned that neurons in the birds’ forebrains fire with a distinct pattern while they sing a song—one that scientists can recreate note by note. While the birds sleep, their brain reproduces this same pattern, replicating the song they heard and sang that day, suggesting the birds remember and practice songs in their sleep.
Fish Dreams
While sleeping, these fish lose muscle tone, develop arrhythmic heartbeats, and show brain activity that looks like that of an awake fish. One notable difference from humans, though not all other animals, was that the fish didn’t move their eyes.
The finding suggests that REM sleep, the state when most dreams occur, may have evolved at least 450 million years ago—before land and aquatic animals diverged in their evolution.
Rat Dreams
After rats run a maze during the day, they can rerun the same course while asleep, research has shown. When awake, a rat’s hippocampus, a part of the brain responsible for making and storing memories, remembers the neuron pattern of navigating the maze. Later when asleep, the brain reproduces the identical pattern, suggesting the rat remembers or relearns the maze all over again.
Those rat brain studies show that when maze memories occur during sleep, the visual imagery that went along with them is also reactivated, meaning the sleeping rodents saw what they had seen in the maze while awake.
