it's not scientifically true for frogs

He plops the second frog in,and this frog okay with that.The chef turns the heat on, very low, and the temperature of water slowly rises.So slowly that the frog doesn't notice.In fact, it basks in the balmy water.Only when the surface begins to bubble does the frog realize: it toast.What funny about this parable is that it's not scientifically true... for frogs.