Animals: Snails have "tongues" with over 25,000 tiny teeth (radu…

Question

Did you know? Snails have "tongues" with over 25,000 tiny teeth (radula); they use them as rasps to scrape food. The radula is made of magnetite — biological iron ore — and according to 2015 research is the hardest material ever produced by animals.

Accepted Answer

Snails have "tongues" with over 25,000 tiny teeth (radula); they use them as rasps to scrape food. The radula is made of magnetite — biological iron ore — and according to 2015 research is the hardest material ever produced by animals.

Slakken hebben "tongen" met meer dan 25.000 zeer kleine tandjes (radula); ze gebruiken het als rasp om voedsel af te schrapen. De radula is van magnetiet — biologisch ijzerore — en is volgens 2015-onderzoek het hardste materiaal dat ooit door dieren is geproduceerd.

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