Vanuatu has banned them outright, while many Chinese families use just one every 24 hours. So why are Australians still sending millions of dirty nappies to landfill every single day?
Around 75% of our faeces is made up of water. The other 25% is the good stuff, including bacteria, viruses and undigested food.
An expert explains how often you should poo and what it should look like.
New research explains that dogs may have evolved to eat faeces as a way to prevent the spread of disease.
If you want to live like a local when on holiday, you should defecate like one.
Incontinence is frighteningly common.
Bugs use their own defecation to defend their young, locate their homes and increase mating opportunities. For humans, insect faeces may even have untapped medicinal properties.
Beetroot, artificial colours, vitamin supplements, medications and illnesses can change the colour of your urine or bowel motions.
No wonder scientists love it.