Mesmerized by dreams at an early age, Dr. Barrett pursued a career where she could study these nightly phenomenons in humans, and she has learned quite a bit about animals along the way.
How are animal dreams different from human dreams?
Anything about what animals dream, or even if they dream, is speculative. The only two animals even suggested to have ever told their dreams to a human are the signing gorillas Koko and Michael. Researcher Penny Patterson reports that Koko occasionally signs about fantastic events, people and places she has not seen recently only upon awakening. Michael, who is known to have been captured when poachers killed his entire family, sometimes wakes up and signs “Bad people kill gorillas.”
What we do know for sure is that most mammals have a similar sleep cycle to humans, going into a deep sleep stage, in which the brain is much less active, and then into periods of activity called Rapid Eye Movement (REM) sleep, in which dreams occur for humans. That certainly makes it the best guess that other mammals are dreaming, too. read more…