1. Real Dog Takes On Robot Dog 20403 김민지

2. Many people are watching a video showing a real dog barking at a robot dog. The robot was made by Boston Dynamics, which is owned by the Internet search company Google. Like most of the company’s robots, it was designed for military use. But the military did not accept it, so Google is now showing it to the public. bark – v. to make a short, loud sound

3. https://www.youtube.com/watch?v=S7nhygaGOmo

4. The robot weighs 75 kilograms -- ten times more than Alex. But Alex does not run away from the robot. The video shows him barking at the robot and preparing to attack it. he person controlling the robot directed it to move away from Alex. But this only seemed to make Alex bark louder.

5. Source of Voice of America Christopher Jones-Cruise.