Questions tagged [excreta]

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8
votes
4answers
162 views

Why are human feces riskier than urine with regard to spreading diseases?

I came across a Wikipedia article titled "Urine diversion". It explains different ways, including using special diversionary toilets, and treating the collection of human feces and urine separately as ...
9
votes
2answers
194 views

Is the chemical composition of urine detrimental or beneficial for a tree?

Seeing as a lot of people around the world urinate against trees it came to mind that I never thought about how the tree responds to this. Is it detrimental for a tree if people urinate against them? ...
4
votes
1answer
73 views

What mammal or creature dropped this? (Warning: Gross Pictures)

I'm at a loss to explain what creature dropped or created this. This giant pile showed up virtually overnight. If someone could point me in the right direction, I'd greatly appreciate it. The ...
3
votes
1answer
135 views

Identify this excreta!

A picture is worth a thousand words! It's about 1.3cm (1/2") long. We rented a basement and I found this on a machine that was moved in a bit earlier. I would like to know if there are any mice, ...
0
votes
1answer
355 views

Does cow urine have medicinal properties?

It is a common belief in India that cow urine has medicinal properties. It is said to be anti-biotic. It cures diabetes, cancer and many other diseases if not all. Because this is biology I would ...
2
votes
0answers
37 views

How urination prior to blood test may give error?

Source: Textbook of Practical Physiology, 4th Edition according to it urination within 30 minutes is a precollection factor that may alter the results of blood test. I am unable to comprehend how ...
2
votes
2answers
727 views

Recycling and storage of nitrogen from breakdown of macromolecules?

If nitrogen is so important (it's a constituent of both proteins and nucleic acids), why are animals still throwing them out, and needing to eat it again? Is it true that in almost a billion years of ...
1
vote
1answer
407 views

Shape of feces in herbivores

Why do some herbivores like sheep, cow, and others excrete feces in a pellet (or biscuit or other) shape, while other species including humans do not do so? What is the reason for such an adaptation ...
0
votes
0answers
48 views

What percentage of human excrement is toxic if ingested?

I have been considering food production, waste management and 3D food printing, particularly during space exploration. This led me to wonder if human excrement could be processed into raw materials ...
7
votes
1answer
276 views

Does urine therapy really work?

I heard a lecture from a supporter of urine therapy and he claimed that urine is not only good disinfection but also as rich source of minerals. To me, these two advice seemed contradictory. In ...
7
votes
1answer
6k views

Why do organisms excrete nitrogenous wastes?

All plants and animals excrete nitrogenous wastes in the form of urea, uric acid or ammonia. But isn't that a bit of a waste? I mean, there is a shortage of biologically available oxygen in the ...
21
votes
1answer
28k views

Why do dogs try to cover their poop?

It may seem obvious to us humans to hide our excreta, but this is not quite normal behavior for animals. Interestingly, dogs have the habit to pee all over the place. It's know that they do so to ...