Yup about racoon's and skunks if you use ceyana pepper powder on the ground they breath it in though there nose and run like hell and on could days if you put it in your socks and gloves cheap heated aparle
And there was a hunting magazine that had a article about what coyotes can see and they can see red but what there spectrum looks like is grays and yellows and green it's kinda like how they add colour to the old movies the info is there but they have to work at it to differentiate between the colours an there thing that was cool about the article is they talked-about the different calls they make like if you shoot one you can make a death cry and call in more or stop the one that you missed in its tracks
On the bear thing I hope they leave you alone and the only thing that I know that works for them is electric fencing
Cayenne pepper deters skunks? I'm going to buy a few pounds of it then! We have a major problem with rabid skunks out here right now. Thanks for the tip!