Liquid chain is a commonly known phenomenon, and it is found to be formed under free fall or due to impact of liquid
on surface. Usually, these liquid chains have rim and lamina, which are explained by instabilities. In this article, we examined a variant of liquid chain and carried a parametric study experimentally. Since this phenomenon is reason for the shape of leaves in a plant, we call them fluid leaves or liquid leaves. Another fluid phenomenon called fluid pineapple (FP), which is actually the result of an interaction of multiple laminar jets, is the reason for the shape of the pineapple. From the abovementioned fluid phenomena and, it is evident the shape of the living organism is based on fluid physics.
Experimental study and the results are provided in detail. All living organisms follows the Fibonacci series and fractal formation. This article shows that the property of fluids to store its molecules in a series is the reason behind the series and fractals' formation in the entire universe. A unified theory is provided to explain the universal presence of leaf shapes and details about the FP in this work.