Harvard Biology: Concentrations, Research, and Career Pathways

July 30, 2025

By Eric Eng

Founder/CEO of AdmissionSight
BA, Princeton University

Harvard university building on campus

Taking a biology major at Harvard can prepare you for many different futures, whether that’s in medicine, research, or conservation. It’s a broad field with many paths you can explore, from the smallest molecules to entire ecosystems. This variety is a big reason why so many students are drawn to the biological sciences at Harvard. In fact, it is one of the university’s most popular majors.

This guide is here to help you understand what it’s really like to be a biology major at Harvard. We will look at the different biology programs offered, their academic requirements, and the unique research opportunities you can find. You will also learn about the curriculum, student experiences, and how to prepare your application.

What Does It Mean to Major in Biology at Harvard?

Studying biology at Harvard works differently than you might expect. You don’t simply declare a “biology major.” Instead, you choose what’s called a “concentration,” which is your specialized track within the field. This approach allows you to focus deeply on the area that interests you most, rather than taking a one-size-fits-all approach.

This means that your experience as a biology major at Harvard can be very different from a friend’s. If you’re drawn to what happens inside individual cells, you might choose Molecular and Cellular Biology (MCB). If you’re more interested in understanding how organisms interact with their environments, Integrative Biology (IB) could be your path. These programs are designed to be interdisciplinary, connecting biology with chemistry, physics, computer science, and other fields.

Here’s what you can expect as a biology major at Harvard:

  • You choose your area of focus. Whether you’re interested in human development, evolutionary biology, or another specialty, there’s a concentration that aligns with your interests. Each path offers depth rather than a broad, general approach.

  • You can specialize further. Within your chosen concentration, you can select specific courses and research projects that match your particular interests and career goals.

  • You’ll combine theory with hands-on experience. Your education balances learning fundamental concepts in lectures with practical research work, whether in laboratories, field studies, or computational analysis.

What makes Harvard’s biology program distinctive is its emphasis on interdisciplinary connections. The program requires you to develop solid skills in mathematics, chemistry, and physics, recognizing that modern biological research increasingly relies on techniques and insights from multiple fields.

biology student undeclared major

Harvard’s Biology Program Structure

One of the best features of Harvard’s biology program is its flexibility.

You don’t need to have your entire academic path mapped out from day one. Most students spend their first year and early sophomore year exploring different subjects before declaring their concentration. This gives you time to discover what genuinely interests you and where your strengths lie.

Before you specialize, you will build a strong foundation. The Harvard biology undergraduate requirements ensure every student starts with a common set of core courses in science and math. This shared knowledge prepares you for more advanced work in any biological field. After completing these, you will take elective courses that are specific to your chosen concentration.

The curriculum follows a logical progression. Here is a general look at the building blocks of the curriculum:

  • Foundational courses. You will typically start with introductory biology, general chemistry, organic chemistry, physics, and math (such as calculus). These courses provide the essential background for any biology major at Harvard.

  • Lab components. Practical skills are a priority. Most of the core science courses include a lab section where you learn experimental techniques and apply the concepts from your lectures.

  • Advanced electives. This is where you really get to specialize. You will choose from a list of advanced courses in your concentration, such as immunology, genetics, marine biology, or animal behavior.

This structure—starting broad, then narrowing—prepares you well for choosing among concentrations like Integrative Biology (IB), Molecular and Cellular Biology (MCB), or Human Developmental and Regenerative Biology (HDRB). Hands-on lab work and research are a central part of the learning process for every biology major at Harvard.

Biology Concentrations at Harvard

Once you complete your foundational science courses, you get to choose your specific path. Harvard’s biology major is divided into several concentrations, each with a unique focus.

Each program offers different courses, research opportunities, and potential career paths. To help you compare them, here is a breakdown of some of the most popular life sciences concentrations:

Concentration

Focus Areas

Unique Features

Career Paths

Biomedical Engineering

Applying engineering principles to solve challenges in medicine and biology. This includes designing advanced medical devices, creating new biomaterials for tissue repair, and developing technologies for medical imaging.

A highly interdisciplinary field that connects engineering with the life sciences. It emphasizes creative problem-solving and design, with a strong focus on improving human health.

Careers in the medical device and biotechnology industries, pharmaceutical research, and healthcare consulting. It’s also an excellent foundation for medical school.

Chemical and Physical Biology (CPB)

Examining biological systems from a molecular perspective by using principles from chemistry and physics. The focus is on understanding the function of essential molecules like proteins and DNA.

This concentration is distinctly quantitative. It integrates rigorous training in math, chemistry, and physics to solve complex biological questions at the molecular level.

Prepares students for research-heavy careers in biotechnology and drug discovery, academia (biophysics or biochemistry), computational biology, and for competitive MD/PhD programs.

Chemistry

The fundamental study of matter and its properties, exploring how substances interact, combine, and change. You will learn the principles of chemical reactions and how to synthesize new materials.

As a central science, it provides a molecular viewpoint applicable to many other fields. The program features extensive hands-on laboratory experience, developing critical analytical and research skills.

Opens doors to diverse fields like the chemical industry, materials science, pharmaceutical development, environmental science, forensics, and science policy.

Cognitive Neuroscience & Evolutionary Psychology (CNEP)

Investigating the foundations of human thought and behavior through two complementary lenses: how the brain produces mental processes, and how our evolutionary past has shaped modern human psychology.

This program offers a unique synthesis by directly linking the brain’s mechanisms to the evolutionary origins of our behaviors and cognitive traits.

Ideal for careers in academic research, user experience (UX) design, data science, and marketing. It also provides a strong foundation for law, public policy, and clinical psychology.

Human Developmental and Regenerative Biology (HDRB)

How a single cell develops into a human being. Key areas of study include stem cells, tissue repair, and the science of regeneration.

It provides a human-centric view of biology with exceptional access to leading research centers that are at the forefront of medical innovation, like the Harvard Stem Cell Institute.

Leads to careers on the cutting edge of medicine, including regenerative medicine, clinical research, developmental biology, genetics, and biotechnology.

Human Evolutionary Biology (HEB)

Exploring the biological journey of our species. It investigates human origins, diversity, and health by studying genetics, anatomy, physiology, and the behavior of humans and our primate relatives.

It integrates a wide range of methods, from genetic analysis in the lab to fossil studies in the field, to piece together the puzzle of human evolution.

Prepares students for academic careers in anthropology or human biology, museum curation, public health, genetic counseling, and science journalism.

Integrative Biology (IB) / Organismic & Evolutionary Biology (OEB)

How whole organisms work, evolve, and interact with their environments. Covers ecology and animal behavior.

Strong ties to Harvard’s museums and opportunities for field work. Cross-departmental learning.

Ecology, conservation, evolutionary research, museum curation, and environmental policy.

Molecular and Cellular Biology (MCB)

The molecular and genetic basis of life. Focuses on how cells function, communicate, and are organized.

Heavy emphasis on lab research from an early stage. Prepares students well for graduate biomedical programs.

Medicine (MD or MD/PhD), biotechnology, pharmaceutical research, genetics.

Neuroscience

The brain, spinal cord, and nervous system. Blends biology with psychology and computer science.

An interdisciplinary program that studies behavior, perception, and disease from a biological standpoint.

Neuroscience research, medicine (neurology, psychiatry), cognitive science, health tech.

Choosing a concentration is a big decision, so it is a good idea to explore the course offerings for each one. You can also talk to academic advisors and older students to learn more about their experiences. Regardless of which path you choose, your time as a biology major at Harvard will provide numerous opportunities for meaningful research and academic growth.

Academic and Research Opportunities for Harvard Biology Majors

As a Harvard biology major, your learning extends far beyond the classroom and textbook. The university strongly encourages undergraduates to get involved in research, providing opportunities to work alongside leading scientists in state-of-the-art labs.

You don’t need to wait until your junior or senior year. Motivated first-year students can start seeking out research positions that align with their interests.

But research isn’t confined to a laboratory. Many programs offer incredible experiences out in the field. These opportunities allow you to see biology in action in the natural world. Some examples include:

  • Tropical field courses. You could spend a summer studying tropical ecology in Panama, a program offered through Harvard’s Department of Organismic and Evolutionary Biology.

  • Marine biology excursions. Students enrolled in marine biology courses often participate in research trips, which might include studying whale behavior off the New England coast or investigating tidal pool ecosystems.

  • Summer research internships. You can apply for funding to conduct research projects over the summer, either continuing work in a Harvard lab or collaborating with researchers at other universities and institutes worldwide.

These hands-on experiences are what make your education come alive. They allow you to apply your knowledge to real-world questions and help you build close relationships with faculty. This direct involvement is a key benefit of being a biology major at Harvard and helps you discover what career path truly inspires you.

Male Biology student looking through a microscope surrounded by plants.

Benefits and Outcomes of Studying Biology at Harvard

So, where can a degree from the biology major at Harvard take you?

A degree from Harvard’s biology program opens doors to far more than you might expect. Beyond developing deep biological knowledge, you will also develop a set of core skills that are valuable in any field you decide to pursue: critical thinking, complex data analysis, experimental design, and clear scientific communication. These capabilities serve you well whether you pursue medicine, research, policy work, or entirely different career paths.

Completing a biology major at Harvard offers several unique advantages that prepare you for success after graduation. These benefits are a combination of rigorous academics and practical, hands-on experience.

Here are some of the key benefits:

  • Learning from experts. You get direct access to professors who are leaders in their fields and can serve as your mentors.

  • Advanced research opportunities. Comprehensive research involvement gives you hands-on experience with real scientific projects. Rather than just reading about experiments, you’ll design and conduct them, learning what it actually means to be a scientist. This experience proves invaluable for graduate school applications and career decisions.

  • Interdisciplinary approach. The curriculum teaches you to connect biology with other sciences, giving you a broader and more powerful way to solve problems.

  • Strong career resources. Harvard provides dedicated advisors and a large alumni network to help you navigate your career path.

Graduates with a Harvard biology major go on to work in a wide variety of fields. While many pursue careers in medicine and research, many others find success in other areas. Common career paths include:

  • Healthcare. Becoming a doctor (MD), dentist (DDS), veterinarian (DVM), or other healthcare professional.

  • Research and academia. Earning a PhD to become a university professor or a scientist at a biotech or pharmaceutical company.

  • Conservation and environment. Working for non-profits like the Nature Conservancy or government agencies like the Environmental Protection Agency (EPA).

  • Related professions. Applying your scientific background in fields like science journalism, public policy, or patent law.

Ultimately, the program is designed to be a springboard. It provides you with a challenging education and a respected degree that opens doors to many different futures.

Harvard Biology Admission Requirements

Harvard doesn’t admit students into specific majors. Instead, you apply to Harvard as a whole, and if you’re accepted, you’ll spend your first year and a half exploring different subjects before choosing your concentration.

Here is a brief summary of what Harvard looks for.

Requirement

Notes

Transcript of Records

Aim for 4.2 or higher.

Standardized Test Scores

Aim for 1580 or higher.

Letters of Recommendation

Request 2 from your teachers and 1 from your counselor.

Essays

Write a personal statement, plus 5 short supplemental essays (each 150 words or less).

Extracurriculars

Harvard is looking for students who show a deep commitment to activities they genuinely care about. Having a consultant to help you with extracurricular planning can definitely help.

Interview (optional)

Sometimes an alumnus may offer an interview.

Harvard evaluates applications holistically, considering every aspect of your background to understand who you are as a person and student.

That said, if you’re serious about pursuing a biology major at Harvard, building a strong foundation in science and mathematics during high school represents your smartest preparation strategy. This approach both strengthens your overall application and prepares you for the demanding coursework you’ll encounter.

Here are some ways you can prepare in high school:

  • Take advanced science courses. Challenge yourself with high-level science classes. Courses like AP Biology, AP Chemistry, and AP Physics show that you are ready for college-level work. These classes demonstrate your readiness for college-level work while giving you essential background knowledge.

  • Build a strong math foundation. Math is the language of science. Aim to take math courses through calculus, as this is often a prerequisite for many of the core science classes you will take at Harvard. Students with solid math skills find themselves much better equipped to handle quantitative aspects of biology, chemistry, and physics.

  • Get involved outside the classroom. Show your passion for science through extracurricular activities. You could join your school’s science club, compete in a Science Olympiad, volunteer at a nature center, or seek out a summer research internship at a local university. These experiences demonstrate genuine passion while providing valuable hands-on learning.

  • Follow your curiosity. Read books about science, watch documentaries, or volunteer at a hospital. Showing that you are genuinely curious about the world is just as important as your grades. Admissions officers look for students who actively seek out learning opportunities and ask thoughtful questions about how the world works.

Remember that Harvard values intellectual breadth alongside scientific interest. Use your high school years to explore literature, history, arts, languages, and social sciences. This diverse foundation will serve you well in college, especially since you’ll have until sophomore year to officially decide on becoming a biology major at Harvard.

Tips for Success as a Biology Major at Harvard

Getting accepted is the first step, but how do you make the most of your time once you are on campus? The coursework for a biology major at Harvard is demanding, but the university has many resources to help you succeed both in and out of the classroom.

Here are some practical tips to help you thrive:

  • Make office hours a regular habit. Your professors and teaching assistants hold weekly office hours. Use this time to ask questions about the material, get advice on research, or simply introduce yourself. Building these relationships is one of the most valuable things you can do.

  • Take full advantage of academic support services. You are not expected to do everything on your own. Harvard’s Academic Resource Center (ARC) offers comprehensive support, including free peer tutoring, academic coaching for time management and study skills, and specialized workshops on effective learning strategies.

  • Be an active participant in labs. When you are in a lab, try to understand the “why” behind each experiment. Ask your teaching assistants questions. Approach lab work as genuine scientific practice, not just another assignment to complete. This mindset helps you develop critical thinking skills essential for advanced coursework and research.

  • Explore interdisciplinary connections. Some of the most interesting discoveries happen at the intersection of different fields. Take a course in computer science to learn data analysis, a statistics class to understand experimental design, or a bioethics class to explore the social impact of science.

  • Form a study group. Working with your classmates is a great way to learn. You can review difficult concepts together, quiz each other before exams, and share notes. It also helps build a sense of community.

Success as a biology major at Harvard requires maintaining intellectual curiosity, knowing when and how to seek help, and actively pursuing the numerous opportunities that surround you. The students who thrive are those who engage fully with both the rigorous academic challenges and the broader intellectual community that Harvard provides.

Frequently Asked Questions

1. Does Harvard have a biology major?

Yes, but instead of one general biology major, Harvard offers several specialized programs called concentrations. You choose a specific field to focus on, such as Molecular and Cellular Biology, Integrative Biology, or Human Developmental and Regenerative Biology.

2. What are Harvard’s top 3 biology majors/concentrations?

Harvard’s most popular biology concentrations are Molecular and Cellular Biology (MCB), which focuses on the molecular basis of life; Integrative Biology (IB), which studies whole organisms and their interactions with environments; and Human Developmental and Regenerative Biology (HDRB), which examines human development and stem cell research.

These three programs attract the most students due to their strong research opportunities and clear pathways to medical school and graduate programs.

3. Can I change my biology concentration easily?

Yes, students can often change concentrations. Many of the biology programs share the same foundational science courses, which makes switching more manageable, especially during your sophomore year. It’s always best to speak with your academic advisor to create a plan that allows you to meet all the new requirements.

4. What kind of lab experience will I get?

You will get lab experience in two main ways. First, your core science classes will include lab sections where you learn fundamental techniques. Second, you are encouraged to join a professor’s research lab, where you can work on an ongoing project and get mentored by experienced scientists.

5. Are there opportunities for summer research?

Yes, summer research is very common. Harvard provides funding and support for students who want to continue their research during the summer break. This can be done at Harvard or at other universities and research institutions.

Takeaways

  • Harvard doesn’t have just one biology major but offers several specialized tracks called concentrations. You can focus on what really interests you, whether that’s studying cells, whole animals, or human development.

  • You don’t need to pick your exact path right away. Most students explore different subjects during their first year before choosing their concentration in their sophomore year.

  • Harvard’s biology program combines classroom learning with hands-on lab work and research opportunities, meaning you’ll actually get to do real science alongside professors and graduate students.

  • A Harvard biology degree can lead to careers in medicine, research, conservation, science communication, patent law, public policy, and many other fields.

  • If you’re feeling overwhelmed by the process of preparing for Harvard or sorting through all the concentration options, working with an experienced admissions consultant can help you build a strong application strategy and identify the path that best fits your goals.

Leave a Comment

Your email address will not be published. Required fields are marked *

Sign up now to receive insights on
how to navigate the college admissions process.

Please register to continue

You need an AdmissionSight account to post and respond. Please log in or sign up (it’s free).