Fascinating article in the National Geographic about animals and their dreams:


Rats practice running through mazes, cats envision future hunts in their heads—scientists are learning more than ever before about animal dreamers.

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.