小小生 meaning in English

trouble maker

The eco - tour in the observatory also attracted a sizable crowd of visitors
天文台的小小生态游亦不乏捧场客。
They start off with a few hundred and then a few thousand and then it gets so thick it looks like you could just pick them up out of the water with your hand . it is absolutely amazing how thick they can get
但我告诉你，坐在那儿，看著神创造的那些海洋生物，每一只，无数的小小生物，它们从非常小最小最小，只能用显微镜来看。