Lehigh University’s Bachelor of Science in Biology provides broad scientific preparation across the molecular, cellular, organismal, and ecological levels of life, making it well suited to students interested in biological research, health-related fields, environmental science, or further graduate study. The program combines foundational biology with laboratory experience and flexible biology electives, allowing students to develop a course of study aligned with their specific scientific interests.
Curriculum Structure
Year 1: Students begin by establishing their foundation in biological science through BIOS 041 Introduction to Cellular and Molecular Biology and BIOS 042 Introduction to Cellular and Molecular Biology Laboratory, or the alternative BIOS 043 Phage Hunting Laboratory. Mathematics also begins early with MATH 021 Calculus I and MATH 022 Calculus II, building quantitative skills alongside introductory life-science study.
Year 2: Students progress from foundational concepts toward broader biological systems through BIOS 044 Introduction to Integrative and Comparative Biology and BIOS 045 Introduction to Integrative and Comparative Biology Laboratory. BIOS 115 Genetics and BIOS 116 Genetics Laboratory, or BIOS 118 Phage Genetics Laboratory, introduce students to inheritance, genetic analysis, and practical laboratory investigation.
Year 3: The curriculum moves into advanced biological thinking, with BIOS 317 Evolution providing a core upper-level perspective on evolutionary processes. Students also begin using the program’s substantial biology-elective component to explore areas such as Comparative Vertebrate Anatomy, Ecology and Evolution of Infectious Diseases, Animal Behavior, Behavioral Ecology, or Ecology, depending on their interests.
Year 4: Students continue advanced biology electives and consolidate their scientific preparation for employment, graduate study, or professional training. Available subjects can include Neuropharmacology, Coevolution, Species and Speciation, Endocrinology, and Wetland Ecology, giving students the flexibility to develop deeper expertise in areas of particular interest.
Focus areas:
Molecular biology, cellular biology, genetics, integrative and comparative biology, evolution, ecology, organismal biology, neuroscience and behavior, infectious diseases, environmental biology.
Learning outcomes:
Students are expected to design experiments, evaluate data and communicate scientific results, apply biological principles to new situations, and understand how different biological sub-disciplines contribute to an integrated understanding of living systems.
Professional alignment (accreditation):
Lehigh describes the B.S. in Biology as providing broad scientific preparation for advanced work in the life sciences and preparation for graduate school, professional training, and health-related careers. The official program information does not state a separate professional accreditation for the B.S. in Biology, so no specific program accreditation is claimed here.
Reputation (employability rankings):
Lehigh University reports that 92% of the Class of 2025 was employed, continuing education, or pursuing military or volunteer service within six months of graduation, while 64% were employed and 24% continued their education. The university also reports an $77,000 average starting salary for its 2025 graduates overall, 88% internship or experiential-learning participation, and 577 unique employers hiring Lehigh students; these figures are university-wide rather than specific to Biology.
The B.S. in Biology at Lehigh University gives students substantial hands-on experience through laboratory-based courses, advanced laboratory projects, independent study, and faculty-led research. Students can progress from introductory research-oriented laboratory activities to sophisticated techniques and independent research in faculty laboratories, working alongside graduate students and other undergraduates. The program also develops the ability to work independently and as part of a team, while Lehigh’s research facilities provide access to specialized biological instrumentation and interdisciplinary research environments.
Practical opportunities and resources include:
The B.S. in Biology provides broad scientific preparation across molecular, cellular, organismal, and ecological biology, giving graduates a foundation for life-science careers and advanced study. Lehigh specifically reports biology alumni working in environmental and forensic sciences, science writing, teaching, and graduate education.
Career opportunities include: biological technician, laboratory or research assistant, environmental science professional, forensic science professional.
Further Academic Progression: After completing the B.S. in Biology, students can pursue graduate study in biology and related life-science disciplines. Lehigh’s Biological Sciences department offers graduate study leading to a Ph.D. with concentrations in biochemistry, evolution and behavior, and neuroscience and cell and molecular biology; the undergraduate program also has affiliations with premedical, predental, and bioengineering pathways.


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