How giraffes defy gravity

Business Insider The giraffe's neck — useful for reaching the loftiest acacia leaves or for slugging would-be rivals — has its drawbacks.  When the creature stoops to take a drink, for example, it must spread its front legs and lower its head to the water's surface. How a giraffe, the tallest animal on earth, then propels that water up its long neck to reach its stomach has been a mystery. Now, new research suggests the secret may lie with a simple device known as a plunger pump. The spark ...