Mmmm...puppy smell. I also like the smell of horses - of all hoofstock, come to that. During a visit to the UK a few years back I called into a couple of zoos (Chester and Whipsnade) and must have looked a right 'nana as I stood outside the ungulate enclosure sucking up the fumes.

Most carnivores, Painted Dogs and otters to be specific, on the other hand do not smell nice.