Which field of study focuses on comparing the structures of different organisms?

The focus of comparative anatomy is on analyzing and interpreting the structural similarities and differences of various organisms. This field provides insights into the evolutionary relationships between species, as well as how different structures have adapted to serve specific functions in different environments. By examining the anatomy—such as bones, muscles, and organs—of various organisms, scientists can trace their evolutionary lineage and understand how divergent paths have led to diverse adaptations.

In contrast, embryology studies the development of embryos, phylogenetics concerns itself with the evolutionary history and relationships among organisms through the analysis of DNA and genetic data, and genomics involves the study of an organism's complete set of DNA, including all of its genes. While all these fields contribute valuable knowledge about biology and evolution, it is comparative anatomy specifically that zeroes in on the structure and form of different organisms.