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For the same reason people age.

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17y ago

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Continue Learning about Zoology

During Which age did humans learn domesticate plants and animals?

I believe sometime in the New Stone Age humans had learned to tame and breed animals for their own use.


Does all animals have different levels of adulthood?

yes . Some animals are considered as adults earlier then some or later they all have a different age considered as being an "adult"


What age can goats get pregnant?

As young as 14 months of age but this can be very stressful


Why did scientists think that large animals of the ice age became extinct?

Because people kept finding their fossilized bones as well as complete animals frozen in the permafrost of Siberia. There aren't any of those animals living now so they must be extinct.


Do animals in the wild die of old age?

Neither humans or animals die of old age. All humans and animals, die of trauma or disease, trauma being physical damage from accident or violence. As creatures age their body's ability to resist or recover from disease declines, and disease processes progress. If the question is do animals in the wild occasionally live long lives and eventually die of one of the diseases of aging, the answer is yes. Note: When not in the wild it is theoretically possible for some animals, namely humans, to actually die of old age. This occurs when biological processes, such and nerve activity, cease functioning due to wear and tear and result in death. Humans do not naturally regrow nerve cells or heart cells to the full extent of damage received. Also, cell reproduction slows down as age progresses and may eventually cease at some incredibly advanced age. These processes attack the body much of the same way as a disease would, so if diseases are to be classified as separate from trauma, then this should be as well. Furthermore, Biology currently requires life to be necessarily capable of reproduction, so, by that definition and with death defined as any end to life, human females die of age around 40, when they hit menopause and can no longer reproduce.