Craig Vierra and colleagues found that the aciniform gland in the Black Widow manufactures and extrudes a previously unidentified protein that is a component of multiple types of silk.

• Craig Vierra及其同事发现,黑寡妇蜘蛛的葡萄状腺能生成并分泌一种以前从未鉴定出的蛋白质,这种蛋白质是好几种蛛丝的组成成分。