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Hello, this is 6 Minute English from BBC Learning English, I'm Neil.
Oh no, Sam.
If you live in a city, you're probably familiar with this very modern site.
A man walking his dog drops a little black plastic bag into a rubbish bin,
inside the bag, is dog poo.
It might make it seem that humans are hygienic creatures,
certainly cleaner than dogs, who go to the toilet wherever they want.
But is this the whole story?
How do us humans compare with other animals when it comes to keeping ourselves and our environment clean?
In this programme, we'll be asking whether humans as a species are naturally clean and tidy.
In fact, from dumping raw sewage into rivers to littering the streets as trash,
humans aren't always good at dealing with waste.