Seattle's public transit system has had a ruff go of things lately, and that has riders smiling.

You see, of the 120 million riders who used the system last year, one of them is actually a dog. Seattle's KOMO-TV reports the 2-year-old black Labrador mix, named Eclipse, has become a regular fixture on the city's D-Line after she figured out how to ride the bus alone to the dog park.

"All the bus drivers know her. She sits here just like a person does," fellow rider Tiona Rainwater told KOMO. "She makes everybody happy. How could you not love this face?"

The dog's owner, Jeff Young, lives next to the stop. He said Eclipse sometimes hops on board without him if he's not yet finished smoking his cigarette when the bus arrives. The pup has become a regular on the route, riding three or four stops before exiting at her destination of choice. "I catch up with her at the dog park," Young explained.

Miles Montgomery, a Seattle radio host and D-Line commuter, was taken by surprise when Eclipse hopped into the seat next to him on a ride last Friday, looked out the window, then got off at her stop. Montgomery snapped a bemused selfie with the commuting canine, adding the caption, "Bus is full this morning:"

Bus is full this morning pic.twitter.com/vBPffAh79J — Miles Montgomery (@MilesKISW) January 9, 2015

A Metro Transit spokesperson told the AP they're happy a dog can appreciate public transit, though Eclipse should really be on a leash. King County says dogs are allowed to ride buses at the discretion of the driver, provided the animal isn't a hazard and doesn't create a disturbance.

Seattle isn't alone in having a streetwise dog. Stray dogs in Moscow, Russia, have learned to commute in and out of the city from the suburbs by riding the subway, even watching out for other dogs to make sure they exit at the correct stop.

Get along, little doggies.