Complex sentence: They are common to the Indigenous Australians but also other peoples worldwide and normally consist of little more than a sturdy stick which has been shaped or sharpened and perhaps hardened by being placed temporarily in a fire.
Split into simpler sentences: They are common to the Indigenous Australians but also other peoples worldwide. This tool normally consists of little more than a sturdy stick which has been shaped or sharpened and perhaps hardened by being placed temporarily in a fire.