Can biological needs be tested experimentally?

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ellateflag
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Can biological needs be tested experimentally?

Post by ellateflag » Fri May 24, 2013 2:20 pm

As in, is there a way of quantifying and testing whether or not a specific 'need' exists in an animal? Can the concept of needs be studied scientifically?

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Post by Cat » Sat May 25, 2013 8:05 pm

What do you mean by "need"?

ellateflag
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Re:

Post by ellateflag » Wed May 29, 2013 1:07 pm

Cat wrote:What do you mean by "need"?


I suppose as in a requirement, such as for food in order to not die. Or more specifically for a specific nutrient.

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chatters
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Post by chatters » Wed Jun 05, 2013 3:29 am

Deprive it of the specified nutrient...
and wait.

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Post by animartco » Wed Jun 05, 2013 12:48 pm

Yes, the only way to see if something is a need is to deprive the subject of it and see what happens. Since such deprivation can result in all sorts of damage to the subject, some of which may not become obvious for years or even generations, trying to asses whether something is actually 'needed' in the life of any creature is virtually impossible.

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