Branches of science much as it involves a clearly biological aspect. While biology remains the centerpiece of life science, technological advances in molecular biology and biotechnology have led to a burgeoning of specializations and new, often interdisciplinary, fields. "Biology" is the branch of natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines. Zoology, occasionally spelled zoölogy, is the branch of science that relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both
Science and inventions of Leonardo da Vinci include the uterus of a pregnant cow, the hindquarters of a decrepit mule and studies of the musculature of a little dog. Leonardo wrote: All the branches of a tree at every stage of its height when put together are equal in thickness to the trunk [below them]. The science of botany was long established by Leonardo's time, a treatise on the subject having been written as early as 300 BCE. Leonardo's study of plants, resulting in many beautiful drawings in his notebooks, was not to record in diagramatic form the parts of the plant, but rather, as an artist