EVOLUTION COULD NOT DO THIS Daniel Bernoullie was an 18th-century physicist who first stated the principle that the pressure exerted by a moving fluid decreases as the fluid moves faster. Bernoullies principle may sound complicated to you and me; but prairie dogs, which live in the western plains of America, understand it well. These little creatures admirably apply this principle in making their underground tunnel cities. The burrows have two openingsone at ground level, the other located on a foot-tall chimney of mud and stones. They work hard to make that second opening higher than the flat one on ground level. Having done this, the Bernoullie principle takes effect and nicely aerates their burrows with fresh air. Having eaten grain out in the fields, a special enzyme in the pigeons throat turns it into milk. At the nest, the squab puts its beak in the parents mouth and sucks it out. There was no time for evolution to slowly evolve that milk for later baby pigeons to eat.
Posted on: Wed, 24 Jul 2013 13:10:43 +0000
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