Complex sentence: Félix d'Herelle (April 25,1873--February 22,1949) was a French-Canadian microbiologist, the co-discoverer of bacteriophages (viruses that infect bacteria) and experimented with the possibility of phage therapy.
Split into simpler sentences: Félix d'Herelle (April 25,1873--February 22,1949) was a French-Canadian microbiologist. He was co-discoverer of bacteriophages (viruses that infect bacteria) and experimented with the possibility of phage therapy.