These are the obvious ones. There is also an entire community of microscopic organisms that thrives unseen in the soil, organisms that have remained nearly unchanged for billions of years. The answers to these captivating questions are all explored in the fascinating field of biology.
Biology is probably the most diverse of all the sciences.
While some biologists are creating new forms of life by manipulating genetic material, others are probing the workings of the brain, tracing the complex interactions within the ecosystems, or seeking new forms of life from the tropical rain forest to the ocean floor. Throughout the 1800s, discoveries and theories abounded, each further defining the many areas of biology that exist today. In 1859, Charles Darwin revolutionized the field with his theories about evolution, which are recognized today as the most important unifying concepts in the discipline today. Biology Today Biology today is an incredibly diverse field, with individuals working on everything from the molecules of genetics to the interaction among populations of organisms. The following chart shows the levels of organization that compose what exists on Earth today.