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By Fiona Midson and Beth Askham Here is a sweet quiz to test your olfactory knowledge. Can you score 5 out of 5 and come up smelling like roses?

Written by Beth Askham Sometimes smelling like your environment is the best way to blend in and hide from predators. On the Great Barrier Reef, the harlequin filefish shelters in coral branches overnight. Researchers have found that these fish not only look like coral, they smell like it too.

Written by Celia Berrell Regardless if it’s yours or mine, why is urine yellow? It’s mostly made of water yet becomes a stinky fellow! When blood’s red heme is broken down, it goes from brown to gold. You’ll see this if you get a bruise and watch it growing old.

Skin cancer is one of the most common cancers in Australia and around the world. Researchers in the USA are developing a new method using the unique ‘smell’ of skin cancer cells to detect them earlier.