Vierra and colleagues used mass spectroscopy to analyze the protein content of two types of silk: the variety used for egg cases and the one used to wrap up prey.

• Vierra及其同事们运用质谱技术分析两种蛛丝的蛋白质组成成分:用于卵壳的蛛丝和用于缠裹猎物的蛛丝。