A funny thing happens when you live in complete darkness. You lose your eyesight. At least that's what's happened to the species that have evolved inside our deepest, darkest caves. See more »

Bacteriology, the branch of biology devoted to the study of bacteria. Bacteriologists are concerned with the structure and functions of bacteria, with the environmental conditions that affect bacterial growth, with the effects of bacteria on the other organisms, and with the uses for bacteria. See more »

Biophysics, the science that uses the principles and techniques of physics to study living organisms. See more »

Nature Study, the informal study of plants and animals, usually in their natural surroundings, and of other natural objects and events. See more »

Taxonomy, the branch of biology that deals with the classification of living and extinct organisms. See more »

Biometry, or Biometrics, the application of statistics to the study of living things. See more »

Bionics, the study of the functions of living organisms for the purpose of building mechanical or electronic devices to copy or imitate these functions. See more »

Botany, the science of plants. Botany is one of the major branches of biology, the science of living things. See more »

Entomology, the study of insects. Scientists specializing in this field are called entomologists. See more »

Eugenics, the study of human heredity in order to find ways to improve future generations through selective reproduction. See more »