The article discusses the glue produced by orb web and cobweb weaving spiders in the Araneoidea superfamily. The glue is produced in specialized silk glands and

The article discusses the glue produced by orb web and cobweb weaving spiders in the Araneoidea superfamily. The glue is produced in specialized silk glands and is responsive to the environment. Researchers compared the glue of two spider species and found that both species had around 30 proteins contributing to the stickiness of the glue, but the number and relative contribution of each protein group differed between the two species. The ability to selectively express different glue protein genes provides a faster mechanism to evolve material properties than sequence evolution alone.