Animal's dream

Garfield in the cartoon have a dream like people too. He was walking to his owner while he was falling in to a dream in his sleep and he told his owner about what he was seeing in his dream. But his owner didn't understand what he was talking because he still asleep in his bed. So his owner just ignored him and he went back into his beautiful sleep.
I never know that cats and other animals can dream like people but I guess some of them also have their own dreaming.
  
For the first animal that I think they can while they are sleeping are dogs. Sometime they might dream about chasing people or finding bone for eat. When the dogs are dreaming,it also walking to the other places in their dream with the eyes closed.
 
Also the cows,when they get tired from working with the farmers in the daytime,so at night it can also have a dream. Sometimes they might dream about running from the Alligator which was trying to get it then the cows will shout out,the noise was so loud that can wake people from their sleep.
 
For the last animal,I would choose the polar bear. On the ice,they can dream about swimming in the cool sea water with their warm and thick fur so that it could keep them away from getting cold in winter. However on this Earth,there aren't only people can have a dream while sleeping but animals can dream during sleeping time too.