Pander studied the chick embryo and discovered the germ layers (i.e., three distinct regions of the embryo that give rise to the specific organ system).
When news customers share common beliefs, profit-maximizing media outlets find it optimal to select and/or frame stories in order to pander to those beliefs.
He is especially known for advocating prophetic, passionate preaching, which aims for biblical faithfulness and does not pander to the whims of culture.