The researchers, Manuel Leal and Brian Powell, exposed tropical lizards in Puerto Rico known as Anolis evermanni to a blue disc. Beneath the disc was some tasty prey — a freshly killed worm larva.

曼纽尔·莱尔亚和布莱恩·鲍威尔将一个圆盘放在波罗黎各安乐蜥属的蜥蜴面前，圆盘底下藏着美味的食物——一只刚刚杀死的蠕虫幼虫。

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The lizards initially looked under only the blue disc, where they expected the worm to be.

两只蜥蜴起初只找了蓝色盘子下面，它们认为蠕虫会在那下面。

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