You need to hang around stables for a while, Gary. Horsey people don't use 'poop' to describe what horses do: they call it $#!+.
Just as an aside: in the third year of my Zoology degree, we actually did a study on various kinds of poop. Did you know that only dogs and their relatives do what is technically called 'a turd'? Turds have layers and much can be told about the owner from studying a cross-section of one. The outer layer is a kind of varnish that protects the dog's innards from sharp bones and spines in the food he eats. And yes, I have studied numerous cross-sections of turds. ROTFL! The things y'do, eh?
Once, we were doing a prac. class out of the lab. The idea was that each group would place a different sample of poop in a container in the middle of a paddock and return after several hours to find out which kinds of dung beetles were attracted to which poops. Apparently, the introduction of European species has vastly changed the composition of the Australian dung beetle population and we were about to start a report on that.
'For this exercise', said the professor, 'we'll be using various mammal specimens from horses, sheep, cows, dogs and cats. We'll also use monotreme specimens from echidnas and marsupial specimens from kangaroos, wallabies and possums. Just out of interest, we'll also use a human specimen'.
Of course, the class clown piped up and said 'Whose is the human specimen?'
Prof Waterhouse smiled smugly at him and said succinctly: 'Mine!' and handed him a jarful of - er - specimen.
At the end of the day, everyone stank! We did, however, find out a number of facts:
- native dung beetles are indeed outnumbered hugely by introduced ones
- different families of animals attract specific kinds of beetles, showing that each kind of dung beetle is evolved to suit a specific kind of poop.
- human dung attracts no dung beetles whatsoever.
Prof Waterhouse commented drily 'I'm sure that has a direct correlation to the standard of my wife's cooking...'