• 384 BCE

    Aristotle

    Aristotle
    His greatest contribution was the classification of species.
  • 1561

    Francis Bacon

    Francis Bacon
    He is regarded as the father of Empiricism, he helped develop the scientific method and he remained relevant during the scientific revolution.
  • Rene Descartes

    Rene Descartes
    He introduced skepticism as an essential part of the scientific method.
  • Carolus Linnaeus

    Carolus Linnaeus
    He was the first to define the characteristics of species in nature and to create a system for naming them which is known as binomial nomenclature.
  • Jean-Baptiste Lamarck

    Jean-Baptiste Lamarck
    He is best known for contributing to Darwin's theory of evolution and his Theory of Inheritance of Acquired Characteristics.
  • Alexander Von Humboldt

    Alexander Von Humboldt
    He helped shape what is today ecology, as well as the environmentalist movement.
  • Henry C. Cowles

    Henry C. Cowles
    He observed that the topography and the type of soil have an effect on the kind of plants that grow in it.
  • Arthur George Tansley

    Arthur George Tansley
    He was a pioneer of ecology in Britain and he introduced the concept of the ecosystem into bilology.
  • Ernst Haeckel

    Ernst Haeckel
    He designated a branch of biology called oecologia to deal with how organisms relate to their external world.
  • Eugene P. Odum

    Eugene P. Odum
    He popularized the study of ecosystems by making it an organizing concept in Fundamentals of Ecology.