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Humans have learnt many things from [natural / nature] . These things have helped us in our daily life. The latest [thing / things] is self-repairing clothing. Scientists have developed a [special / specially] way for clothing to repair rips and tears by [themselves / itself] , without the need for sewing. It works with materials such [was / as] cotton, linen and wool. The scientists are from the Naval Research Office and Pennsylvania State University in the USA. Scientists Dr. Walter Dressick and Dr Melik Demirel looked [at / on] how squid can cling on [too / to] things so well. The research team found a protein in the rings of teeth that [recover / cover] the suckers on a squid. The protein is [similar / same] to the one found in the silk that spiders use to make spider webs. It is very [strong / strength] and elastic (stretchy).

The new protein has been [development / developed] as part of a coating, which is put on [clothe / clothes] . When the coating is dipped [in / on] water, the area around the rip or tear joins together in [fewer / less] than a minute. This could help clothes [last / lasts] longer and save us money. It could also be useful for military and [survival / survive] clothes. People like soldiers and mountaineers would be safer if they had clothes that repaired [quick / quickly] and easily. Professor Demirel [spoke / speak] about the invention. He said: "The coatings are thin, less than a micron, so they wouldn't be [notice / noticed] in everyday wear." He added: "Even thin, they increase the [overall / overalls] strength of the material. For the first time, we are making self-healing textiles."