I Saw This In My Yard. Is This Just A Type Of Worm? Or Is There A Parasite On It? (I Saw It Breathing/Have Some Sort Of Heartbeat, So It’s Alive)

I Saw This In My Yard. Is This Just A Type Of Worm? Or Is There A Parasite On It? (I Saw It Breathing/Have Some Sort Of Heartbeat, So It’s Alive) | Bored Panda