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  2. Childbirth - Wikipedia

    en.wikipedia.org/wiki/Childbirth

    Many women are known to experience what has been termed the "nesting instinct". Women report a spurt of energy shortly before going into labour. [38] Common signs that labour is about to begin may include what is known as lightening, which is the process of the baby moving down from the rib cage with the head of the baby engaging deep in the ...

  3. Timeline of the evolutionary history of life - Wikipedia

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

    The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.

  4. 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 ...

  5. 5 Signs of Labor That Are Not False Alarms - AOL

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  6. Pregnancy - Wikipedia

    en.wikipedia.org/wiki/Pregnancy

    In the ideal childbirth, labor begins on its own "at term". [17] Babies born before 37 weeks are " preterm " and at higher risk of health problems such as cerebral palsy . [ 4 ] Babies born between weeks 37 and 39 are considered "early term" while those born between weeks 39 and 41 are considered "full term". [ 4 ]

  7. All Life on Earth Might Have Started From Lightning ... - AOL

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    Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in. ... All Life on Earth Might Have Started From Lightning, Scientists Say. Darren Orf.

  8. Work (human activity) - Wikipedia

    en.wikipedia.org/wiki/Work_(human_activity)

    Work or labor (labour in Commonwealth English) is the intentional activity people perform to support the needs and desires of themselves, other people, or organizations. [1] In the context of economics , work can be viewed as the human activity that contributes (along with other factors of production ) towards the goods and services within an ...

  9. Pre-labor - Wikipedia

    en.wikipedia.org/wiki/Pre-labor

    Pre-labor consists of the early signs before labor starts. It is the body's preparation for real labor. Prodromal labor has been misnamed as “false labor." Prodromal labor begins much as traditional labor but does not progress to the birth of the baby. Not everyone feels this stage of labor, though it does always occur.