Thoughtful Gifts for Curious People
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The earthworm’s waves of peristalsis move it forward with the help of the setæ, alternately gripping and releasing the soil. This charming diagram shows the muscular effort which goes into their mighty soil-tilling efforts.
This t-shirt has quite a slim fit - consider ordering a size larger thank you normally would.
Also available in other styles and shapes.
100% cotton. Fitted, tapered shape.
Olive t-shirt, printed in colour.
Care: Machine wash cool. Tumble dry low. Do not iron text/images.