Complex sentence: Frank Kemp Salter is an Australian researcher at the Max Planck Institute for Behavioral Physiology, Andechs, Germany, known for his writings on ethnicity and ethnic interests.
Split into simpler sentences: Frank Kemp Salter is an Australian researcher at the Max Planck Institute for Behavioral Physiology, Andechs, Germany. He is best known for his writings on ethnicity and ethnic interests.