Shark skin

BBC Wildlife Magazine - - SKIN -

These won­ders of evo­lu­tion have so many in­cred­i­ble adap­ta­tions that their skin is of­ten over­looked, yet sharks are cov­ered in mi­cro­scopic tooth-like structures called der­mal den­ti­cles. These are the size of sand grains and uniquely shaped in each species. The back­ward-fac­ing ‘scales’ al­low sharks to slip through the water ef­fort­lessly.

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