Rana evolucija i razvoj: Ernst Haeckel

Knjige:

1. Evolucija : klasici i suvremene spoznaje / uredio Mark Ridley. Zagreb : Naklada Jesenski i Turk, 2004 - sign. 575 /EVO/
2. Larson, Edward John: Evolucija : kratka povijest. Zagreb : Alfa, 2010 - sign. 575 /LAR/ e
3. Haeckel, Ernst // Hrvatska enciklopedija. Zagreb : Leksikografski zavod Miroslav Krleža, 1999-2009 - Sv. 4 : Fr - Ht
4. Haeckl, Ernst Heinrich // The world book encyclopedia. Chicago : World book, cop. 1996 - Vol. 9 : H

Članci u časopisima:

1. Švob, Tvrtko: Lamarck - Darwin - Haeckel - Gorjanović : značajni datumi u povijesti evolucijske znanosti // Veterinarska stanica. - 30 (1999), 1 ; str. 45-53

Google Books:

1. Robert J Richards: The tragic sense of life : Ernst Haeckel and the struggle over evolutionary thought. Chicago [u.a.] University of Chicago Press 2008

Izvori na internetu (09.03.2012.):

1. Ernst Haeckel // Encyclopædia Britannica Online
2. Robert J. Richards: The Tragic Sense of Ernst Haeckel:His Scientific and Artistic Struggles
3. Nolan Hele: Ernst Haeckel and the Morphology of Ethics // Journal of the Canadian Historical Association / Revue de la Société historique du Canada, vol. 15, n° 1, 2004, p. 1-27.