Come on, who discovered that Kangaroos emissions are environmentally friendly? What little hopper held still long enough for some human down wind to figure this all out? How the little stinker was contained, in a baggie, jar& a pouch ? And who has the presence of mind to then compare Kangaroo gas to sheep and cattle emissions? Yes, we now know it is true that Kangaroo "stinkers" lack methane and so scientist's are now working to see if a special bacteria found in the kangaroos stomach that makes their gas methane free would transfer to livestock. Australian officials report that 14% of all their air pollutants come from cattle and sheep, why that worries anyone I will never know, I would be more concerned with what's causing the other 86 percent. Now if Kangaroo farts are methane free, what are bunny boofs? My heavens, just think about the green house gasses produced by all of America's dogs. It is amazing I survive in a two dog household ? Now do you suppose I can get some Kangaroo bacteria for my husband? .