When I have better control of lucid dreams I would like to transform into different animals like in The Once and Future King

In a normal dream recently, I was a flying squirrel. Waking it wasn't realistic. But in the dream there was a great feeling of gliding on different wind currents (although I almost flew into a tree!)

edit: had another ND last night (Mar 29) where I was an animal. This time I was a dog. Don't remember feeling different physically although I think I felt happier .
There were a few parts that weren't dog like - I held onto a rope and got pulled up. But several times in the dream i saw my DC as a brown mid-sized dog.