Most jumping spiders only have green-sensitive and UV-sensitive photopigments in their retinas.

大多数跳蛛视网膜中仅含有对绿和紫外线敏感光。

And, to throw in a small twist from genetic evidence, there was a study from 2012 that looked at the evolution of photopigments in the eye that detect color.

而且， 从基因证据中加入一个转折，2012年有一项研究探讨了眼睛中检测视蛋白进化。

Rather than evolving new photopigments, they added an internal filter to some of their green-sensitive cone cells, which cuts out green light and forces those cells to respond only to longer wavelengths like red.

它们并未进化出新光，而是在部分对绿光敏感视锥细胞中加入了一个内部滤光器，这个滤光器能阻挡绿光， 迫使这些细胞只对红等更长波长光产生反应。