Bernhard Rensch Scientist
Bernhard Rensch (21 January 1900 – 4 April 1990) was a German evolutionary biologist, and ornithologist who did field work in Indonesia and India. He is probably best known as one of the architects of the modern evolutionary synthesis, which he popularised in Germany. Besides his work on how environmental factors influenced the evolution of geographically isolated populations and on evolution above the species level, which contributed to the modern synthesis, he also worked extensively in the area of animal behavior (ethology). His education and scientific work were interrupted by service in the German military during both World War I and World War II.