Dyret der laver terninger
Wombats are the only known animal to produce cube shaped droppings, and the corners are formed by uneven stiffness in the last part of the gut.
Before you read
Before you read
Ét dyr laver firkantet lort. Send dette til en der tror naturen ikke har humor. I Australien lever et lavt, tungt, pelset dyr kaldet en vombat. Den graver lange tunneler, den spiser græs hele natten, og den efterlader sig små pæne terninger.
I mange år kunne ingen forklare det. Hjørner er svære at lave. Hos alle andre dyr på planeten kommer bløde ting der forlader en krop, ud runde eller aflange. Så forskere kiggede nøje inde i en vombat og fandt svaret i den sidste del af dens tarm.
Den del er ikke ens hele vejen rundt. Nogle steder på væggen er stive og presser hurtigt og hårdt sammen. Andre steder er bløde og strækker sig bare. De stive dele trykker hjørnerne ind, igen og igen, indtil formen sætter sig og holder. Vombatten stabler så de færdige terninger på sten og træstammer for at fortælle andre vombatter hvis jord det her er. Runde ville bare trille væk. Terninger bliver liggende præcis hvor de bliver lagt.
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