Problem solving using mental image in the deep-sea isopod Bathynomus doederleini

在一个水族箱的地板上铺满了高尔夫球，并将一只被试动物--杜德雷尼深海鱼（Bathynomusdoederleini）放入其中，球的直径约为被试长度的三分之一。十个人进行了测试，其中两个人在球里做了一个洞穴状的结构。一个人创造了一个长度比动物长10倍的特征。另一个挖到球和移动的距离，这是大约8倍的动物的长度。可以假设，这些动物创造了新的方法来进入他们在自然界中从未遇到过的未知材料。

The floor of an aquarium was covered by golf balls entirely and a subject animal, Bathynomus doederleini, was put in it. The diameter of the ball was about one third of the length of a subject. Ten individuals were tested and two of them made a burrow-like structure in the balls. One made a trait of which the length was about 10 times longer than that of the animal. Another dug into the balls and moved a distance which was about 8 times longer than the length of the animal. It can be assumed that these animals created novel methods to move into the unknown materials that they have never met in the nature.