Columbia subject headings:
Mayr, Ernst, 1904-2005.
Naturalists--Biography.
Ornithologists--Biography.
Harvard subject headings:
Princeton subject headings:
Evolution (Biology)--Philosophy--History.
Mayr, Ernst, 1904-2005.
Naturalists--Germany--Biography.
Naturalists--United States--Biography.
Ornithologists--Germany--Biography.
Ornithologists--United States--Biography.