Biological Scientists Biological scientists work in varied environments ranging from rigorous outdoor conditions to exacting lab work. Biologists work with toxic substances undertake risk and hence have to exercise great care. Personality & Working Conditions Biological scientists must have an above average aptitude in the understanding of biological, chemical and mathematical concepts. Most of the job is of observation and systematic study hence a systematic approach coupled with patience and curiosity are essential to sustain one through long periods of research and study