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  2. 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 ...

  3. 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]

  4. History of Animals - Wikipedia

    en.wikipedia.org/wiki/History_of_Animals

    The History of Animals contains a large number of eye-witness observations, in particular of marine biology, in sharp contrast to Plato's "symbolic zoology". Aristotle's style and precision can be seen in the passage where he discusses the behaviour and anatomy of the cephalopods, mentioning the use of ink against predators , camouflage , and ...

  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. Animal - Wikipedia

    en.wikipedia.org/wiki/Animal

    View history; Tools. Tools. ... Download as PDF; Printable version; ... It has been estimated there are as many as 7.77 million animal species on Earth. Animal body ...

  7. File:Goldsmith's history of the earth and animated nature ...

    en.wikipedia.org/wiki/File:Goldsmith's_history_of...

    Goldsmith's history of the earth and animated nature, abridged : containing the natural history of animals, birds, fishes, reptiles, and insects; on the plan recommended by Miss Hannah More. For the use of schools, and youth of both sexes. By Mrs. Pilkington. A new ed., with plates. Page ID

  8. Lists of organisms by population - Wikipedia

    en.wikipedia.org/wiki/Lists_of_organisms_by...

    More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]

  9. 25 Exciting Earth Day Activities for Kids - AOL

    www.aol.com/lifestyle/21-earth-day-activities...

    5. Bring some plant life home. Maybe you don’t have a dog yet, but if your kids are showing major interest in a pet (or more than one), start with easy houseplants first and encourage their ...

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