Bat Wing Small 320×188 Medium 640×377 Large 1024×602 Download TIFF Original 2400×1412 | (294.4 KB) Description There are two types of classification, homology and analogy. Homology is the fundamental identity of structure, as distinguished from analogy, which incidental resemblance in form or function. Bat wing showing homolog and analogy. Keywords analogy, bat wing, classification, homology Galleries Bats, Mammal Anatomy: External Details Source: Winchell, Alexander Sketches of Creation (New York, NY: Harper & Brothers, 1870)
