Any of various moths of the family Geometridae, having caterpillars commonly known as measuring worms that move by looping the body in alternate contractions and expansions.

尺蠖蛾任何尺蠖蛾科的蛾，通常称为尺蠖，通过身体交替的收缩和伸展来伸屈前进。

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The experiments were inconclusive, however, because of the problem of measuring the temperature of such tiny worms.

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