It's dog versus machine.
A video, created by Boston Dynamics, the Google-owned robotics company, shows an interaction between a small, real dog and the Spot robot, which looks like a tall, headless dog.
"Come on, take him big dog," a voice says in the video shot in a parking lot.
But the real dog is not intimidated. It barks relentlessly and doesn't let the lifelike robot get away too far, chasing after it. The Spot robot is the latest quadruped robot from Boston Dynamics.
The video was posted to YouTube on Feb. 27 by Steve Jurvetson, a venture capitalist who is involved in several high-tech companies.