Book Gregorio, Mario A. di; (2005)
From Here to Eternity: Ernst Haeckel and Scientific Faith (/isis/citation/CBB000671261/)

Article Richards, Robert J.; (2005)
Ernst Haeckel and the Struggles over Evolution and Religion (/isis/citation/CBB000933659/)

Chapter Morton, Marsha; (2009)
From Monera to Man: Ernst Haeckel, Darwinismus, and Nineteenth-Century German Art (/isis/citation/CBB001035101/)

Article Kyriakou, Kyriakos; Skordoulis, Constantine; (2010)
The Reception of Ernest Haeckel's Ideas in Greece (/isis/citation/CBB001220617/)

Book Gliboff, Sander; (2008)
H. G. Bronn, Ernst Haeckel, and the Origins of German Darwinism: A Study in Translation and Transformation (/isis/citation/CBB000850350/)

Article Nöthlich, Rosemarie; Wetzel, Nadine; Hoßfeld, Uwe; Olsson, Lennart; (2006)
“Ich acquirirte das Schwein sofort, ließ nach dem Niederstechen die Pfoten abhacken u. schickte dieselben an Darwin”---Der Briefwechsel von Otto Zacharias mit Ernst Haeckel (1874--1898) (/isis/citation/CBB000933670/)

Chapter Di Gregorio, Mario A.; (2009)
Unter Darwins Flagge: Ernst Haeckel, Carl Gegenbaur und die Evolutionäre Morphologie (/isis/citation/CBB001035236/)

Article Santos, Guilherme Francisco; de Carvalho Ramos, Maurício; (2013)
Ernst Haeckel e a sua Monografia das moneras (/isis/citation/CBB001214025/)

Book Ernst Haeckel; Valeria Maggiore; (2024)
Storia della creazione naturale. Conferenze scientifico-popolari sulla teoria dell’evoluzione in generale e su quella di Darwin, Goethe e Lamarck in particolare (/isis/citation/CBB568386188/)

Article Hopwood, Nick; (2015)
The Cult of Amphioxus in German Darwinism; or, Our Gelatinous Ancestors in Naples' Blue and Balmy Bay (/isis/citation/CBB001510262/)

Thesis Gliboff, Sander Joel; (2001)
The pebble and the planet: Paul Kammerer, Ernst Haeckel, and the meaning of Darwinism (/isis/citation/CBB001562605/)

Article Levit, Georgy S.; Hoßfeld, Uwe; (2006)
The Forgotten “Old-Darwinian” Synthesis: The Evolutionary Theory of Ludwig H. Plate (1862--1937) (/isis/citation/CBB000670835/)

Article Halpern, Megan K.; Rogers, Hannah Star; (2013)
Inseparable Impulses: The Science and Aesthetics of Ernst Haeckel and Charley Harper (/isis/citation/CBB001201299/)

Chapter Richards, Robert J.; (2009)
The Tragic Sense of Ernst Haeckel: His Scientific and Artistic Struggles (/isis/citation/CBB001031454/)

Article Kleeberg, Bernhard; (2007)
God-Nature Progressing: Natural Theology in German Monism (/isis/citation/CBB000850279/)

Book Zigman, Peter; (2000)
Einblicke in eine sterbende Ära: Das Ende des Mythos der guten alten Zeiten (/isis/citation/CBB000102643/)

Article Hoßfeld, Uwe; Breidbach, Olaf; (2005)
In the Wake of the “Darwin Correspondence”. 40.000 Letters to Ernst Haeckel Listed and Available for Study (/isis/citation/CBB000933656/)

Book Kleeberg, Bernhard; (2005)
Theophysis: Ernst Haeckels Philosophie des Naturganzen (/isis/citation/CBB000830695/)

Book Keiko Sato; (2015)
Hekkeru to shinka no fantaji: Ichigenron, ekoroji, keitouju ヘッケルと進化の夢:一元論,エコロジー,系統樹 Haeckel and the Fantasy of Evolution: Monism, Ecology, and the Genealogical Tree (/isis/citation/CBB052999110/)

Article Brain, Robert Michael; (2010)
How Edvard Munch and August Strindberg Contracted Protoplasmania: Memory, Synesthesia, and the Vibratory Organism in Fin-de-Siècle Europe (/isis/citation/CBB001031062/)