By Rutten, M. G. (Martin Gerard) . Genre Life / Origin / Geology . Names life / fossils / age / bacteria / plants and 815 more

By Darwin, Charles, 1809-1882 . Genre Evolution / Natural selection / Heredity / Human beings / Origin . Names animals / life / animal / adult / insects and 5871 more

By Haeckel, Ernst Heinrich Philipp August, 1834-1919 / McCabe, Joseph, 1867-1955 . Genre Evolution / Embryology, Human / Human beings / Origin . Names animals / vertebrates / vertebrate / animal / simple and 2579 more

By Bastian, H. Charlton. . Genre Life / Origin . Names bacteria / life / bacilli / bacillus / order and 1485 more

By Haeckel, Ernst Heinrich Philipp August, 1834-1919 . Genre Evolution / Embryology, Human / Anatomy, Comparative / Human beings / Origin . Names animals / vertebrates / simple / animal / called and 3261 more

By Oparin, Aleksandr Ivanovich, 1894-1980 / Synge, Ann. . Genre Life / Origin / Matter / Properties / Chemistry, Physical and theoretical . Names bacteria / life / plants / simple / glycine and 3080 more

By Haeckel, Ernst, 1834-1919 . Genre Evolution / Embryology, Human / Anatomy, Comparative / Human beings / Origin . Names animals / vertebrates / simple / animal / called and 6665 more

By Eimer, Gustave Heinrich Theodor, 1843-1898 . Genre Evolution / Life / Origin . Names animals / life / animal / plants / order and 2116 more

By Mivart, St. George Jackson, 1827-1900 . Genre Human beings / Origin / Apes . Names gorilla / order / called / primates / lemur and 549 more

By Darwin, Charles, 1809-1882 . Genre Evolution (Biology) / Sexual selection in animals / Sexual dimorphism (Animals) / Sex differences / Human beings and 1 more . Names animals / life / adult / age / xx and 3086 more