user32077: Are references needed for any of the following facts that we all learn as children aged 1-2:

Cubes don't roll
Spheres roll
Gravity makes spheres roll on slopes
Gravity doesn't make spheres roll on the flat
Things which roll are prone to not being where they started out
Indicating some location requires that you don't indicate some different location instead.
Absorption takes place at the surface

Surely an answer which is just a statement of facts which are in themselves self-evident, requires no references.
Or is that just an automated flag that appeared for illogical reasons?

user9943: I placed that banner because you make 2 unsupported claims:


...it's worth pointing out that a cube with rounded corners and edges has larger surface area to volume ratio than a spherical dropping, making it more efficient for the reabsorbtion of moisture, which would be an evolutionary advantage in a place where water is in short supply.... 


And 


Additionally, in respect of the claim made here that droppings are used for marking, it may be advantageous to have a dropping that doesn't roll, if it's important some subsequent visitor can identify the precise spot the droppings were dropped, especially if one inhabits sloped terrain (which a wombat does - mountainous areas of Australia)...


These unsubstantiated claims are opinions or 'hunches', rather than being evidence-based.
Plus, a 2-year old doesn't know what absorption is, let alone that

Absor[p]tion takes place at the surface :)


32077: <p>Are <a href="https://biology.stackexchange.com/a/79171/32077">references needed</a> for any of the following facts that we all learn as children aged 1-2:</p>

<ul>
<li>Cubes don't roll</li>
<li>Spheres roll</li>
<li>Gravity makes spheres roll on slopes</li>
<li>Gravity doesn't make spheres roll on the flat</li>
<li>Things which roll are prone to not being where they started out</li>
<li>Indicating some location requires that you don't indicate some different location instead.</li>
<li>Absorption takes place at the surface</li>
</ul>

<p>Surely an answer which is just a statement of facts which are in themselves self-evident, requires no references.</p>

<p>Or is that just an automated flag that appeared for illogical reasons?</p>
 9943: <p>I placed that banner because you make 2 unsupported claims:</p>

<ul>
<li><blockquote>
  <p>...it's worth pointing out that a cube with rounded corners and edges has larger surface area to volume ratio than a spherical dropping, <strong>making it more efficient for the reabsorbtion of moisture</strong>, which would be an <strong>evolutionary advantage</strong> in a place where water is in short supply.... </p>
</blockquote></li>
</ul>

<p>And </p>

<ul>
<li><blockquote>
  <p>Additionally, in respect of the claim made here that droppings are used for marking, it <strong>may be advantageous to have a dropping that doesn't roll</strong>, if it's important some subsequent visitor can identify the precise spot the droppings were dropped, especially if one inhabits sloped terrain (which a wombat does - mountainous areas of Australia)...</p>
</blockquote></li>
</ul>

<p>These unsubstantiated claims are opinions or 'hunches', rather than being evidence-based.</p>

<p>Plus, a 2-year old doesn't know what absorption is, let alone that</p>

<blockquote>
  <p>Absor[p]tion takes place at the surface :)</p>
</blockquote>
