Limpets feed on algae and other vegetative organisms. Facts about Limpets 9: the mantle cavity The limpet sits on a rock and rolls out its radula over the rock's surface. Limpets’ size can vary from eight centimeters to twenty centimeters. Limpets that feed on marine angiosperms have broad and flat-topped teeth.

Limpets cling to rock formations and feed on algae. They are located on the radula. Equal-size blunt radular teeth are present in limpets that feed on coral lineage. Limpets have rows of teeth on a tongue-like appendage called a radula, Barber says.

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The limpets have a flat shell and they stick on the rocks by using a muscular foot which allows them to remain attached on rocks if a big wave comes. The sea-faring, snail-like limpets have been found to have teeth so strong that they could be used to make future generations of cars and planes. They do this with the radula, which is a ribbon-like tongue with many teeth, at least twelve in each row. Atomic force microscopy was used to examine the fragments of the radula from limpets, with the research deomstrating that the strength of the teeth are the same, no matter what size the sample. There was a study about the teeth of Patella vulgata in 2015 which stated that it had the tensile strength of 3.0 to 6.5 GPa or gigapascals. Limpets that feed on rock substrates have unequal-sized, sharp teeth. They do not move at speed, so when the tide is in the limpets need to be able to cling on. Mimicking the structure of limpets’ teeth could help engineers build sturdier cars, boats and aircraft, says Barber.

Engineers have discovered that these molluscs’ teeth are made of the strongest biological material in the world. The power found in their teeth helps the aquatic critters do just that. Limpets, which are essentially very small sea snails, have 1mm teeth made of "an almost ideal" mix of protein supported by fine mineral nanofibers called goethite, according to Barber. Facts about Limpets 8: the teeth. They eat by using their radula which is an organ similar to a tongue with rows of teeth.