There are so many animals available for farming - it's hard to know which one's to get. I love milk and beef, and have experience as a cattle farmer, but I know that kangaroos emit much less methane. On the other hand, there is a high cost of fencing, and kangaroos don't have a few thousand years of domestication. And if you want fibres, is it more environmentally friendly to have goats, sheep, or alpacas? One goat may be more harmless than one sheep, on the other hand you won't get as much fibre, so you'd need more of them. And what about ducks v chickens, v geese for meat and eggs? And what about hares? What's your preference for animals when it comes to their suitability for permaculture, and their relative impact on the environment? Which are your favourites?