[timewizard]

> Mammals, on the other hand, have teeth

Chewing is also an imperfect process. Mammals, and I can tell you this personally and with some disdain, sometimes pass seeds as well.

> found a chemical irritant that repels the mammals

Deer, and I can tell you this personally and with some disdain, seem to love peppers as much as we do. They're also harder to keep out of your yard.

[astrange]

> Chewing is also an imperfect process. Mammals, and I can tell you this personally and with some disdain, sometimes pass seeds as well.

That's how you get poop coffee.

https://en.wikipedia.org/wiki/Kopi_luwak