Discussing the Dark Constellations in the Milky Way.
"Now that was a fairly important part of the sky for the Aboriginals down the south coast because it's got their totem animal in it, the Emu right? Now if you look down here by the Southern Cross you can see this  oval dark patch with a little bit of a triangle sticking out of it , that's the Coal Sack, a big dust cloud but to the aboriginals that was the head of an emu. The Emu's neck runs in the dust lane down past the pointers thickening out down by Sagittarius there broadening out into the back of a large emu sort of crouching down on the ground. The Aboriginals and the kalahari bushmen and the incas were the only people  round the world who saw shapes in the dust clouds in the sky rather than in the bright stars. See over by the other side of the southern cross there's a sort of dark wriggly line that runs through the milky way, all the way up through Canis Major there, that's the serpent, the rainbow serpent."

Large rock art of the 'Rainbow Serpent', Mt. Borrodaile - Northern Territory.
Copyright © 2000 Aboriginal Australia Pty Ltd

"To the Aboriginals of central Australia when that area of the sky came over the cliff line up in Kakadu for example, the wet season was just about to start. The rainbows were coming, the snakes were coming and exactly the same for the Indians in the Amazon. They too saw this wriggly line as a rainbow serpent. So you know on opposite sides of the earth native peoples with exactly the the same stories from the same part of the sky because it was the thing that was coming over the skyline on dusk at the start  of the season where you got rainbows and serpents together."

( now discussing the dust clouds of the Emu again, from the perspective of the Incas)
"The Two pointers were the eyes of a llama and the llamas body is that big dark lane that goes up at the top, a long neck and you can see four legs underneath it. And over there's a baby llama drinking. And just to complete the picture over there is a fox trying to steal away the baby llama."

Why aren't there northern hemisphere descriptions of these supernova remnant dust clouds?
"I think the reason, in the south the milky way is much brighter, you can actually see the dust lanes on  a dark night and they're very prominent and you can see the dust clouds so there's a big difference for native peoples north and south of the equator."