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Tiny Robots Move With Living Muscle

The muscles grow from mouse cells.

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Technology news editorial illustration for Living Muscle Helps Tiny Robots Jump and Grip

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Source: ETH Zurich, via Tech Xplore, 2026-10-22.

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Try 2 questions about this story, then explain one idea in your own words. Check the text whenever you need to.

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Read and understand · 1/2What makes the soft frame move?

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Muscle tightening. The contraction makes the soft structure bend.

Clue: ETH Zurich researchers made tiny robots using muscle grown from mouse cells. When the muscle tightens, a soft frame bends and moves.

Read and understand · 2/2What keeps the muscle alive?

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A special liquid. The dependence on liquid is a practical limitation.

Clue: The team showed jumping, swimming and gripping in the lab. The muscle needs a special liquid to stay alive.

Your turn

Explain one movement and one limit of these robots.

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The devices move, but their living tissue must be kept alive.

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