---
title: "Biologist"
chunk: 2/2
source: "https://en.wikipedia.org/wiki/Biologist"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T03:47:14.684673+00:00"
instance: "kb-cron"
---

Geneticists study genetics, the science of genes, heredity, and variation of organisms.
Neuroscientists study the nervous system.
Developmental biologists study the process of development and growth of organisms
Biochemists study the chemical composition of living things. They analyze the complex chemical combinations and reactions involved in metabolism, reproduction, and growth.
Molecular biologists study the biological activity between biomolecules.
Microbiologists investigate the growth and characteristics of microscopic organisms such as bacteria, algae, or fungi.
Physiologists study life functions of plants and animals,  in the whole organism and at the cellular or molecular level, under normal and abnormal conditions. Physiologists often specialize in functions such as growth, reproduction, photosynthesis, respiration, or movement, or in the physiology of a certain area or system of the organism.
Biophysicists use experimental methods traditionally employed in physics to answer biological questions .
Computational biologists apply the techniques of computer science, applied mathematics and statistics to address biological problems. The main focus lies on developing mathematical modeling and computational simulation techniques. By these means it addresses scientific research topics with their theoretical and experimental questions without a laboratory.
Zoologists and wildlife biologists study animals and wildlife—their origin, behavior, diseases, and life processes. Some experiment with live animals in controlled or natural surroundings, while others dissect dead animals to study their structure. Zoologists and wildlife biologists also may collect and analyze biological data to determine the environmental effects of current and potential uses of land and water areas. Zoologists usually are identified by the animal group they study. For example, ornithologists study birds, mammalogists study mammals, herpetologists study reptiles and amphibians, ichthyologists study fish, cnidariologists study jellyfishes and entomologists study insects.
Botanists study plants and their environments. Some study all aspects of plant life, including algae, lichens, mosses, ferns, conifers, and flowering plants; others specialize in areas such as identification and classification of plants, the structure and function of plant parts, the biochemistry of plant processes, the causes and cures of plant diseases, the interaction of plants with other organisms and the environment, the geological record of plants and their evolution.  Mycologists study fungi, such as yeasts, mold and mushrooms, which are a separate kingdom from plants.
Aquatic biologists study micro-organisms, plants, and animals living in water. Marine biologists study salt water organisms, and limnologists study fresh water organisms. Much of the work of marine biology centers on molecular biology, the study of the biochemical processes that take place inside living cells. Marine biology is a branch of oceanography, which is the study of the biological, chemical, geological, and physical characteristics of oceans and the ocean floor. (See the Handbook statements on environmental scientists and hydrologists and on geoscientists.)
Paleontologists study the history of life on Earth through the analysis of fossils—preserved remains, traces, or impressions of past organisms found within rocks. Their work combines biological knowledge with geological methods, since interpreting fossils requires understanding the stratigraphy, sedimentology, and geochronology of the rock layers in which they occur. Paleontologists reconstruct ancient organisms, ecosystems, and environments; investigate patterns of evolution, extinction, and biodiversity through deep time; and analyze how geological processes influence the preservation and distribution of fossils. Many specialize in particular groups, such as vertebrates, invertebrates, or plants, or in subfields such as taphonomy (the study of fossilization), paleoecology (ancient ecosystems), or biostratigraphy (dating and correlating rock layers using fossils).
Evolutionary biologists investigate the evolutionary processes that produced the diversity of life on Earth, starting from a single common ancestor. These processes include natural selection, common descent, and speciation.
Ecologists investigate the relationships among organisms and between organisms and their environments, examining the effects of population size, pollutants, rainfall, temperature, and altitude. Using knowledge of various scientific disciplines, ecologists may collect, study, and report data on the quality of air, food, soil, and water.

== Employment ==
Biologists typically work regular hours but longer hours are not uncommon. Researchers may be required to work odd hours in laboratories or other locations (especially while in the field), depending on the nature of their research.
Many biologists depend on grant money to fund their research. They may be under pressure to meet deadlines and to conform to rigid grant-writing specifications when preparing proposals to seek new or extended funding.
Marine biologists encounter a variety of working conditions. Some work in laboratories; others work on research ships, and those who work underwater must practice safe diving while working around sharp coral reefs and hazardous marine life. Although some marine biologists obtain their specimens from the sea, many still spend a good deal of their time in laboratories and offices, conducting tests, running experiments, recording results, and compiling data.
Biologists are not usually exposed to unsafe or unhealthy conditions. Those who work with dangerous organisms or toxic substances in the laboratory must follow strict safety procedures to avoid contamination. Many biological scientists, such as botanists, ecologists, and zoologists, conduct field studies that involve strenuous physical activity and primitive living conditions. Biological scientists in the field may work in warm or cold climates, in all kinds of weather.

== Honors and awards ==
The highest honor awarded to biologists is the Nobel Prize in Physiology or Medicine, awarded since 1901, by the Royal Swedish Academy of Sciences. Other significant awards include the Crafoord Prize in Biosciences (established in 1980), and the Maxwell/Hanrahan Award in Field Biology (established in 2020).

== See also ==
Biology
Glossary of biology
List of biologists
Lists of biologists by author abbreviation

== References ==

U.S. Department of Labor, Occupational Outlook Handbook