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  2. Timeline of the evolutionary history of life - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the...

    [15] [16] The Moon's gravitational pull stabilised Earth's fluctuating axis of rotation, setting up regular climatic conditions favoring abiogenesis. [17] 4404 Ma Evidence of the first liquid water on Earth which were found in the oldest known zircon crystals. [18] 4280–3770 Ma Earliest possible appearance of life on Earth. [19] [20] [21] [22]

  3. History of Animals - Wikipedia

    en.wikipedia.org/wiki/History_of_Animals

    In the History of Animals, Aristotle sets out to investigate the existing facts (Greek "hoti", what), prior to establishing their causes (Greek "dioti", why). [1] [3] The book is thus a defence of his method of investigating zoology. Aristotle investigates four types of differences between animals: differences in particular body parts (Books I ...

  4. Just like humans have homes, animals also have places they live. The places where animals live are called habitats. Also, just as humans are all different and therefore live in different types of ...

  5. History of life - Wikipedia

    en.wikipedia.org/wiki/History_of_life

    The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...

  6. File:An introduction to the classification of animals (IA ...

    en.wikipedia.org/wiki/File:An_introduction_to...

    Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.

  7. Timeline of zoology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_zoology

    Aleksandr Oparin proposes that the Earth's early atmosphere contained methane, ammonia, hydrogen, and water vapour, and that these were the raw materials for the origin of life. 1931. Founding of Prague Zoo. 1932. Founding of the Journal of Animal Ecology. 1932. Establishment of the Bureau of Animal Population at the University of Oxford. 1934.

  8. Lists of prehistoric animals - Wikipedia

    en.wikipedia.org/wiki/Lists_of_prehistoric_animals

    List of extinct animals of Romania; List of fossil species in the La Brea Tar Pits, California, United States; List of fossil species in the London Clay, England; List of White Sea biota species by phylum, Russia; Paleobiota of the Hell Creek Formation, northern United States; Paleobiota of the Morrison Formation, western United States

  9. List of extinction events - Wikipedia

    en.wikipedia.org/wiki/List_of_extinction_events

    The blue graph shows the apparent percentage (not the absolute number) of marine animal genera becoming extinct during any given time interval. It does not represent all marine species, just those that are readily fossilized.

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