Grass fibre, mucus and some toxins removed from the body
Elephants are an animal that produces large piles of feces. A hippopotamus is another animal that produces large piles of feces.
their waste...
Animal feces is called scat just to show that it is non-human. There are many other terms used for the term "feces" to show non-human feces. These are dung, droppings and spoor.
Feces from said animal.
The act of an animal eating its feces is called copography. The main reason why animals practice copography is if food was not digested properly. In an animal's feces, there are usually some strains of undigested material, and an animal (your dog) will eat feces to obtain the nutrients.
One definition of the word "scat" is "animal droppings", e.g. bear scat. So - yes. Scat is another word for animal feces.
Feces or fecal matter is undigested animal waste. All mammals produce feces from the food they eat. Feces is what is left over after the digestive process that the body couldn't use.
A pile of feces or poop from an animal.
Coprology is the study of Feces or waste product from an animal
Because no one wants animal feces in their water.
The only time that samples are collected from an animals feces is when they are conducting test to see what the animal is eating and over all health of the animal.
You can find pictures of animal feces online. Wikipedia is a good place to start. You can also use any search engine that has an image search feature.