because they were protected from the weather underground.
No they did not. They had homes on the surface.The underground homes were for the dead in the tomb inside the pyramids for the nobles and simple burial for the commoners.
Hkfu
I stayed at an underground hotel at White cliffs NSW near Broken hill in an opal mining town. The whole place is dug into the hill and set up like the underground homes of the miners known as dugouts.
Residents of Australia have to build their homes on stilts in flood zones. Homes in the north may have air conditioning but not heating. Homes in the south have heating. Much of the crops are grown in the Atherland Tablelands because the soil is good but it needs irrigation to grow crops.
They used skin to build their homes
No they do not build homes. They are a herd animal with a hoof. Think about that. There is no way to build anything. They do migrate.
Homes in Australia are like homes in America. The aborigines, however, live in primitive structures in or near the desert.
not all spiders have the ability to build homes in their webs
They used different materials to build there homes because ceartan groups lacked resources to build there homes
Coober Pedy is unique for its underground homes, which are dug into the earth to help shield the residents against the summer heat and winter nights. Earth provides a natural insulation against extremes of temperatures. While the summer average is around 35 degrees Celsius (95 degrees Fahrenheit), summer days in Coober Pedy can reach a maximum of 50 degrees Celsius (122 degrees Fahrenheit). Winter nights can reach the other extreme, being bitterly cold. Also, the enclosed underground homes have better protection against the occasional duststorms that wing their way across the Australian desert.
There are too many underground mines to list. Australia is very rich in mining resources.