In many species of birds, males are much more brightly colored than females, and following the discovery of UV sensitivity, researchers sought evidence that UV colors not visible to humans might influence mate choice.

• 在许多种鸟类当中，雄鸟都要比雌鸟鲜豔得多，因此，在研究人员发现鸟类看得到紫外光之后，他们就想去证明，人类看不到的紫外光，可能也会影响鸟类择偶。