This article was originally published on mentalfloss.com as Dolphins Taste Each Other's Pee to Identify Friends.

TV star Ben Grylls says he does it for survival – and teaches his reality show contestants to do the same. Mexican boxer Juan Manuel Márquez practised this therapy to train for his 2009 fight with ...

Feeling thirsty? You might not want to ask a giraffe for a drink, or they could share the unusual beverage they consume — and we can guarantee you wouldn’t like the taste. Male giraffes drink from the ...

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The piss-abilities are out of this world. Astronauts may one day not have to relieve themselves in diapers while on spacewalks thanks to groundbreaking technology that will convert their urine into ...