Was It Designed?

Surgeons repair bones with the help of pins, plates and screws, but these tools are too cumbersome for use on smaller bone fragments. Researchers were faced with the challenge of developing an adhesive that could solidify in the wet environment of the human body. Recently, they found a possible solution by studying the sandcastle worm.

The sandcastle worm makes it's tubular under water home out of particles of sand and shell. Each particles is bonded to the next by a dab of glue that is manufactured by a gland...
in the worm's thorax. This glue is superior to most adhesives currently in use. It contains a unique set of proteins that when combined cause the glue to solidify quickly under water.

Researchers have made synthetic versions of the sandcastle worm glue that have even greater strength than the original. The glue that will finally be used in operating rooms will also have to be biodegradable so that when used to mend broken bones, the glue will dissolve as the bone heals. If this glue is useful in humans it will be a medical breakthrough.
A little worm solving a complicated adhesion problem!
What do you think? Did the sandcastle worm' unique glue come about by chance or was it designed?

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