MENDELSSOHN, HEINRICH (1910–2002), Israeli zoologist. Mendelssohn was born in Berlin and studied zoology there at the Humboldt University. He immigrated to Ereẓ Israel in 1933, continuing his studies at the Hebrew University. From 1947 to 1956 he served as director of the Biological and Pedagogical Institute of Tel Aviv, which became the department of zoology of Tel Aviv University. In 1961 he was appointed professor. Mendelssohn devoted most of his activity to nature conservation. He served as a member of the Nature Conservation Authority and chairman of the Israel Committee for Nature Preservation in Israel of the International Biological Program. He represented Israel on the International Conference of Ecology. He was awarded the Israel Prize in science in 1973.