Researchers know of nature's big . They found out spiders make silk. It is stronger than . Scientists found that the the spider keeps its silk has a acid. This makes the silk strong. The researchers copied . They made spider silk to stretch for one .
The silk could be very . Doctors think it can help with , burns and ligament . Airplane companies and clothes want . A researcher said: "This is the successful example of [copying] spider silk ….This may allow… of…silk for bio-."
