It's not accurate to talk about "fathers" of entire branches of biology, as the field has evolved over centuries with contributions from countless individuals. However, we can talk about pioneering figures who made significant contributions to specific areas of biology.

Here are some examples, grouped by area:

General Biology:

* Aristotle (384-322 BC): Often considered the "Father of Biology," he laid the groundwork for classification and observation of living things.

* Robert Hooke (1635-1703): His observations of cells under the microscope were foundational to cell theory.

* Carl Linnaeus (1707-1778): Developed the binomial nomenclature system for classifying organisms, still used today.

Specific Branches:

* Genetics: Gregor Mendel (1822-1884) is considered the "Father of Genetics" for his work on pea plants, which revealed fundamental laws of inheritance.

* Evolution: Charles Darwin (1809-1882), along with Alfred Russel Wallace (1823-1913), revolutionized our understanding of how life changes over time.

* Microbiology: Louis Pasteur (1822-1895) is considered the "Father of Microbiology" for his work on pasteurization and germ theory.

* Molecular Biology: James Watson (1928-present) and Francis Crick (1916-2004) are famous for their discovery of the structure of DNA.

* Ecology: Ernst Haeckel (1834-1919) coined the term "ecology" and emphasized the interconnectedness of living things and their environment.

It's important to note that these are just a few examples, and many other scientists have made significant contributions to their respective fields. Biology is a dynamic field, and new discoveries are being made constantly, building upon the work of previous generations.