If you've ever noticed your pup twitching while snoozing and wondered what is going on in their head, you'll likely be very ...

Just like humans, dogs experience sleep cycles that include rapid eye movement (REM) sleep and non-REM sleep. REM sleep, the stage where most dreaming occurs, is characterized by rapid movement of ...

or REM. In recent studies, dogs have been shown to be dreaming about pointing at birds or running. Dog dreams tend to depict activities they often participate in, Wag reports.