@ArchaeoIain PS re: New Guinea Singing Dogs…. I corresponded with Desmond Morris recently and he told me a funny story about a famous conductor who had been given a pair of NG singing dogs and hence donated them to the London Zoo where Morris was director. Morris's friend Spike Milligan came to hear them sing. He listened carefully and declared that their Bach was worse than their Bitehoven!

@ArchaeoIain yes, as you saw. I find it curious that the PNG singing dog and apparently, the Coast Salish Woolly dogs had different 'voices' from European and modern dogs. I wonder if this points to more ancient DNA and what other ancient dogs had more of a yap or howl than a bark?