Most Popular Scientists

Sandra Witelson (Medicine)

Neuroscience, biological basis for cognition in male and femal brains

Endel Tulving (Psychology)

World authority on human memory function

Lap-Chee Tsui (Genetics)

Found the gene that causes cystic fibrosis

Sid Altman (Molecular Biology)

Discovered catalytic RNA, for which he won the Nobel Prize in 1989

Biruté Galdikas (Zoology, Animals, Physiology, Metabolism)

World’s foremost authority on orangutans

Hubert Reeves (Astronomy, Astrophysics and Space Science)

World famous cosmologist and science communicator

Donald (H. S. M.) Coxeter (Pure and Applied Mathematics)

Greatest classical geometer of the 20th century

Willard S. Boyle (Condensed Matter Physics, crystals, magnets, superconductors, semiconductors)

Co-Inventor of the Charge Coupled Device for which he won the 2009 Nobel Prize in Physics

Michael Smith (Organic Chemistry)

Won the Nobel Prize in chemistry in 1993 for discovering site-directed mutagenesis: that is, how to make a genetic mutation precisely at any spot in a dna molecule.

Doreen Kimura (Psychology)

Behavioural Psychologist World expert on sex differences in the brain. Wrote the book Sex & Cognition, which argues that there truly is a difference between male and female brains.

John Charles Polanyi (Physical Chemistry)

Won the 1986 Nobel Prize in chemistry for using chemi-luminescence of molecules to explain energy relationships in chemical reactions

Julia Levy (Microbiology and Immunology)

Co-discovered photodynamic anti-cancer and ophthalmology drugs, co-founder of the company QLT Inc.

Gerhard Herzberg (Physical Chemistry)

Won the 1971 Nobel Prize in chemistry for using spectroscopy to discover the internal geometry and energy states in simple molecules, and in particular the structure and characteristics of free radicals.

Bertram Neville Brockhouse (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Won the Nobel Prize in 1994 for designing the Triple-Axis Neutron Spectroscope and his use of it to investigate Condensed Matter

Tak Wah Mak (Microbiology and Immunology)

Discovered the T-Cell receptor, a key to the human immune system

Charles J. Krebs (Zoology, Animals, Physiology, Metabolism)

Famous for writing Ecology: The Experimental Analysis of Distribution and Abundance (now in its fifth edition), a textbook used worldwide to teach ecology, and for his work on the Fence Effect.

David H. Hubel (Medicine)

Co-winner of the Nobel Prize in Physiology or Medicine in 1981 for mapping the visual cortex

Irene Ayako Uchida (Genetics)

World-famous Down syndrome researcher

Werner Israel (Astronomy, Astrophysics and Space Science)

Physicist and cosmologist: Wrote the first logically precise theory for the simplicity of black holes (1967)

Roger Daley (Atmospheric Science)

Principal constructor of the Canadian numerical weather forecasting system

William Ricker (Zoology, Animals, Physiology, Metabolism)

Canada's Greatest Fisheries Biologist: Inventor of the Ricker Curve for describing fish population dynamics

Robert L. Carroll (Paleontology, paleobiology)

Vertebrate palaeontologist who recognized and described the oldest known ancestor of all reptiles birds and mammals; the origins of terrestrial vertebrates, the origin of various amphibians such as frogs and salamanders.

Walter Lewis (Botany)

Ethnobotanist: World expert on airborne and allergenic pollen and famous for targeting medicinal plants in the tropical rain forest.

Louis Taillefer (Superconducting Materials, physics of electrons, crystals, metals, ceramics)

World expert on superconductivity

Memory Elvin-Lewis (Botany)

Ethnobotanist and Infectious Disease Microbiologist: Dr. Elvin-Lewis is an expert on evaluating traditional medicines and their use.

Henri Darmon (Pure and Applied Mathematics)

One of the world's leading number theorists, working on Hilbert's 12th problem.

Sir Frederick Grant Banting (Medicine)

Successfully isolated insulin and received the Nobel Prize

Alexander Graham Bell (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Worked with the deaf, inventor.

Fergus I. Craik (Psychology)

One of the world's foremost authorities in the areas of human memory and the effects of aging on learning, memory, and attention

John Charles Fields (Pure and Applied Mathematics)

Established the Fields medal, the "Nobel Prize" of mathematics.

Maude Abbott (Medicine)

Pathologist. Developed a classification system for congenital heart diseases

Roberta Lynn Bondar (Astronomy, Astrophysics and Space Science)

First Canadian woman astronaut in space

Richard E. Taylor (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Won the Nobel Prize for verifying the quark theory

Donald Brian Calne (Medicine)

Neurologist who first used synthetic dopamine to treat Parkinson's disease.

Henry Taube (Inorganic Chemistry)

Won the Nobel prize in chemistry for studying electron transfer reactions

John Herbert Chapman (Astronomy, Astrophysics and Space Science)

Builder of the Canadian space program

Evelyn Merle Roden Nelson (Pure and Applied Mathematics)

Talented algebraist whose vigorous career in mathematics was cut short by cancer.

Evelyn C. Pielou (Evolution and Ecology)

Biologist: Invented mathematical ecology

Rudolph Arthur Marcus (Physical Chemistry)

Contributed to the theory of electron transfer reactions in chemical systems

Frederick Ernest Joseph Fry (Evolution and Ecology)

Developed a model for estimating fish populations using VPA (virtual population analysis)

Barrie J. Frost (Psychology)

Visual neuroscientist who has pioneered research into how our brains see and hear, and how animals like monarch butterflies and seabirds navigate amazing distances.

Davidson Black (Paleontology, paleobiology)

Identified a new species of ancient human, “Peking Man”

Harold Elford Johns (Medicine)

Designed Cobalt 60 units for treatment of cancer

J. William (Bill) Costerton (Microbiology and Immunology)

Pioneered biofilm microbiology

B. Brett Finlay (Microbiology and Immunology)

One of the world's foremost experts on the molecular understanding of the ways bacteria infect their hosts

Louis Slotin (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Nuclear scientist killed by radiation accident at Los Alamos, New Mexico in 1946.

Louis Bernatchez (Evolution and Ecology)

Top Canadian molecular biologist studying the genetics of fish populations

Elizabeth Cannon (Pure and Applied Mathematics)

Geomatics Engineer and world expert in the research and development of satellite navigation tools using GPS

John Tuzo Wilson (Geophysics)

Geophysicist: pioneer in the study of plate tectonics

Helen Battles Hogg-Priestley (Astronomy, Astrophysics and Space Science)

Researched globular star clusters and popularized astronomy

Ursula Franklin (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Pioneered the physics of ancient archeological materials

William George Unruh (Astronomy, Astrophysics and Space Science)

Contributing to theories on gravity and black holes, early cosmology, and quantum phenomena

Cecilia Krieger (Pure and Applied Mathematics)

First woman to earn Doctorate in Mathematics from Canadian university.

Harriet Brooks (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Canada’s first female nuclear physicist

Peter B. Borwein (Pure and Applied Mathematics)

Internationally renowned mathematician who, with his brother Jonathan, calculated the value of pi to a new world record.

John Stanley Plaskett (Astronomy, Astrophysics and Space Science)

Astronomer and engineer who created a new design in reflecting telescopes.

Pieter Cullis (Biochemistry)

Lipid-based drug delivery systems

Jonathan M. Borwein (Pure and Applied Mathematics)

Internationally renowned mathematician who, with his brother Peter, calculated the value of pi to a new world record.

Cathleen Synge Morawetz (Pure and Applied Mathematics)

Pioneering advances in partial differential equations and wave propagation math used in aerodynamics, acoustics and optics

David T. Suzuki (Zoology, Animals, Physiology, Metabolism)

Geneticist and science communicator: famous as popularizer of science and ecological issues

Matthew W. Choptuik (Astronomy, Astrophysics and Space Science)

World leader in the field of Numerical Relativity

James Hillier (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Co-designed the first commercially available electron microscope in North America

Anne Underhill (Astronomy, Astrophysics and Space Science)

First Canadian woman astrophysicist

Armand Frappier (Microbiology and Immunology)

Researched BCG vaccine for tuberculosis, and infant leukemia

James Greig Arthur (Pure and Applied Mathematics)

Mathematician; internationally recognized for his outstanding advances in unifying the mathematical fields of algebra and analysis

Albert Juan Aguayo (Medicine)

Studies regeneration of neurons in the brain and spinal chord

Norman L. Bowen (Geochemistry and Geochronology)

A founding father of experimental petrology.

Gilles Fontaine (Astronomy, Astrophysics and Space Science)

World's foremost expert on the study of white dwarf stars

Howard Alper (Organic Chemistry)

World leader in field of catalytic organic chemistry

Dennis Hubert Chitty (Evolution and Ecology)

One of the first animal ecologists in the world and a world expert on lemmings

Charles Herbert Best (Medicine)

Co-discoverer of insulin

William (Bill) James Leslie Buyers (Condensed Matter Physics, crystals, magnets, superconductors, semiconductors)

Researched magnetic excitations and structures of solids and liquids; first to observe the "Haldane Gap", thereby confirming a previously controversial theory in quantum magnetism.

Hans Selye (Medicine)

World-famous pioneer and popularizer of research on biological stress in human individuals and groups

Sylvia Fedoruk (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Medical physicist; Member of the team that developed the first Cobalt 60 units for cancer treatment

Ronald Melzack (Medicine)

Developed the gate-control theory of pain

Anatol Rapoport (Pure and Applied Mathematics)

One of the main originators of conflict theory, game theory, and peace research

Phillip James E. Peebles (Astronomy, Astrophysics and Space Science)

Important cosmologist and astrophysicist

Murray Llewellyn Barr (Genetics)

Discovered sex chromatin

Alice Wilson (Geochemistry and Geochronology)

First woman geologist in Canada, expert in paleozoic formations

Wilder Graves Penfield (Psychology)

Mapped out the functional areas of the cerebral cortex of the brain

Jules P. Carbotte (Condensed Matter Physics, crystals, magnets, superconductors, semiconductors)

Expert on superconductivity

Colin Whitcomb Clark (Pure and Applied Mathematics)

Invented mathematical bioeconomics

Gladys Boyd (Medicine)

One of first doctors to treat diabetic children with insulin

Judith G. Hall (Medicine)

Expert in congenital birth defects specializing in dwarfism and other genetic factors affecting children's growth.

Ian Keith Affleck (General Physics, Subatomic Particles, Optics, Biophysics, Theoretical Physics)

Researching the theory of elementary particles, condensed matter and cosmology

Ronald James Gillespie (Physical Chemistry)

Developed VSEPR (Valence Shell Electron Pair Repulsion) Theory

Robert P. Langlands (Pure and Applied Mathematics)

Developed mathematical theories of group representations and number theory

Gail Anderson (Zoology, Animals, Physiology, Metabolism)

entomology, insects, forensics, crime

Richard F.W. Bader (Physical Chemistry)

One of Canada's most prominent theoretical chemists, specializing in molecular structure and reactivity.

Kenneth Iverson (Computer hardware and software)

Invented the APL computer programming language

Sir Charles Edward Saunders (Botany)

Chemist; Cereals Experimentalist: Developed Marquis wheat for the Canadian West

John Bienenstock (Medicine)

Immunologist; international authority on mucosal immunity.

Phil Gold (Medicine)

Developed the first and still most widely used blood test for certain types of cancer

Demetri Terzopoulos (Artificial Intelligence)

Breakthroughs in fields of computer vision, artificial life and computer graphics

M. Brock Fenton (Zoology, Animals, Physiology, Metabolism)

One of the world’s foremost authorities on bats

Michael Ruse (Evolution and Ecology)

Contributed major ideas about the philosophy of biology and Darwinism

Pierre Deslongchamps (Organic Chemistry)

Pioneered the synthesis of organic molecules

Lorne Babiuk (Microbiology and Immunology)

International authority in veterinary virology and immunology

Hans Christian Fibiger (Medicine)

Psychiatrist, leader in brain research and in the causes and treatments of clinical depression

Gabrielle L. Boulianne (Genetics)

Neurobiologist who has used the common fruit fly as a model to study aging and human neurodegenerative diseases such as Lou Gehrig's disease and Alzheimer's.