The foul stench of penguin poop sets Antarctic krill on edge. In lab experiments, the mere scent of penguin droppings — or guano — sent krill scrambling for escape, researchers report March 20 in ...

But the question is...is the poop science actually a load of crap? Hold your nose and dive in to discover if it is actually possible for Watney to survive on Mars like the movie portrays.

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