EVOLUTION

By mariinacorredor
  • 4000 BCE

    Miller's Experiment.

    Miller's Experiment.
  • 4000 BCE

    INORGANIC MATTER TO ORGANIC MATTER

    Miller's experiment proves that organic matter can transform by inorganic matter thanks to the chemical reactions in the Earth in those days. (gases like amoniac, or the atmosphere, the impact of the meteorites...).
    Miller represented the Primordial Soup with his experiment.
  • 3900 BCE

    Appearance of Protocells

    Appearance of Protocells
    Some of the long chains surrounded by a membrane and become protocells.
  • 3500 BCE

    Stromatolytes

    Stromatolytes
    They are colonial microorganisms that live in some waters, for example in Australia. They are the oldest organisms on the Earth.
  • 3500 BCE

    Prokaryotic

    Prokaryotic
    They appeared thanks to the Primordial Soup, because the organc molecules joint.
  • 1800 BCE

    Oxygent in the air.

    Oxygent in the air.
    Stromatolytes reproduce ammount of oxygent and then the atmosphere become oxydyzing. This change made the apparition of new forms.
  • 1400 BCE

    Fisrt eukaryotic cells.

    Fisrt eukaryotic cells.
    As we said new forms appeared with oxygent, one of them were Eukaryotic cells, which obtains the energy burning organic matter with oxygent.
    First they all reproduced assexually but then the sexual reproduction arrived.
  • 600 BCE

    Multicellular organims

    Multicellular organims
    Sexual reproduction gave them the capacity of exchanging information and adapting to the changes in the environment. Ans thanks that, the created multicellular cells (cells with especial and concrete functions).
  • 500 BCE

    Invertebrates and vertebrates

    Invertebrates and vertebrates
    Thanks to cell differentiation and sexual reproduction started appearing new unusual species like vertebrates, although, the first specie wasn invertebrate.
  • 243 BCE

    Dinosaurs

    Dinosaurs
    They became the dominant terrestrial vertebrates their dominance continued through the Jurassic and Cretaceous periods. They are a varied group of animals (birds, fishes…) we know about them thanks to the fossils.
  • 65 BCE

    Dinosaurs extinction

    Dinosaurs extinction
    They are exiting because of the changes that caused a meteorite that fell on the Earth
  • 65 BCE

    Mammals coexist

    Mammals coexist
    The first mammals evolved from a population of vertebrates called therapsids (mammal-like reptiles).
    But, it was only after the dinosaurs went that mammals were able to evolv forms into the widely specialized species that populate the world today.
  • 50 BCE

    Primates

    Primates
    Most animal species flourished and became extinct long before the first monkeys and their prosimian ancestors evolved.
    They are mammalian primates that include lemurs, ai-ais, monkeys apes... with humans included in the last category
  • 4 BCE

    Autropophitecus

    Autropophitecus
    It was the first hominid primate (Hominids are a family of primates that includes human beings and fossil species).
  • 3 BCE

    Homo abilis

    Homo abilis
    When discovered, it was considered the oldest species in the genus Homo. His name means "skilled man" and refers to the finding of instruments.
  • 2 BCE

    Homo erectus

    Homo erectus
    A main characteristic of Homo erectus is the shape of the cranial vault.
  • 2 BCE

    Homo neanderthal

    Homo neanderthal
    They had a biggest cranial vault, and they started communicating.
  • 1 BCE

    Homo sapiens

    Homo sapiens
    This is our specie!