1·The spider conch (Lambis chiragra), a gastropod mollusk with six fingerlike projections sticking out of its shell, is one of these seabed dwellers.
蜘蛛螺(Lambis chiragra)就是其中一种海底生物，它属于腹足软体动物，壳上有6个指状突起。
2·Two fingerlike parts on the tip of the trunk allow the elephant to perform delicate maneuvers such as picking a berry from the ground or plucking a single leaf off a tree.
象鼻末端两个指状的部分让大象可以做精细的动作，像从地上捡起一枚浆果，或者是从树上采摘一片叶子。
3·In fact, the PKMzeta molecules appeared to herd themselves, like Army Rangers occupying a small peninsula, into precisely the fingerlike connections among brain cells that were strengthened.
事实上，就像陆军游骑兵占领一个小的半岛一样，PKMzeta分子看起来可以让他们自己自动放牧在那些被激活脑细胞之间的指状连接。