Narrator: Odds are you are surrounded by nose-pickers. It's true. In one study, 91% of adults admitted to picking their nose regularly ... by a layer of sticky snot that lines your nostrils.

eight-centimetre-long middle finger to deeply pick its nose, it pointed towards a larger mystery: why exactly do some animals eat their own snot? The footage resulted in research which names the ...

Reindeer suffer with symptoms similar to a cold, such as coughing and spluttering - and maybe even that legendary red nose. The cause is not a common cold, however, but an infestation of fly larvae.