No company employs more robots than Amazon, with over 1 million automation helpers. Despite this, the world's second-largest employer still has more than 1.5 million human workers.

Amazon's robots handle the heaviest lifting, freeing up workers to focus on customer satisfaction and order assembly. However, labor advocates and researchers warn that while automation eases some burdens, it may create new challenges.

The rise of collaborative robots, or cobots, means that not only are these machines closer to human workers, but they can also set the pace of work, which could lead to unexpected pressures.

With the promise of fast deliveries to 200 million Prime members, the need for human workers in fulfilling orders remains critical. Dull, dirty, and dangerous tasks are increasingly being handed over to robots, but this shift raises questions about the future of human roles in the warehouse.