🇰🇷 South Korea 2h ago · jjh@koreatimes.co.kr(KoreaTimes)

[WEEKENDER] A day with Jerry, guide dog in training

Korea Times

[WEEKENDER] A day with Jerry, guide dog in training

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As Jerry, a Labrador retriever, approached a crosswalk, he came to a stop at the curb. His trainer, Keum Jung-hun, had given no command. Jerry simply recognized the boundary between the sidewalk and the road and stopped on his own. Keum pressed a small device, producing a sharp click. Known as a clicker, the tool signals that Jerry has performed a task correctly. "It means he did a good job," Keum explained. "Verbal praise takes time, but a clicker lets us mark the exact moment he does something