The Swiss naturalist Konrad von Gesner (1516-1565) wrote "Historia animalium," which is considered the basis of modern zoology.

Konrad von Gesner was born on March 26, 1516, in Zurich. The man who was to become known as the German Pliny and to be ennobled by the Hapsburg emperor Ferdinand I began his life inauspiciously. His father, a poor furrier, perished in the battle of Kappel in 1531, as the wars spawned by the Reformation laid bloody hands on the Swiss cantons.

Young Gesner came under the protection of Heinrich Bullinger, Huldreich Zwingli's successor, and Oswald Myconius, the Protestant classics scholar. Their generosity permitted Gesner to undertake studies at the University of Strassburg, where he displayed great linguistic talent and interest in nature. Although he angered his guardians by marrying a beautiful but impoverished lady, Gesner was allowed to continue his studies at Basel, where he also studied medicine.

Gesner secured the...