Figure 1
Poster of the film Urwelt im Urwald. Der Film, no. 42, 18 October 1925 (Public Domain).
Figure 2
Three agents from the dataset: Adolf von Dungern (center), with Otto Bertram (left) and Rudolf Rangnow (right), holding a three-toed sloth (Bradypus variegatus Schinz, 1825) during the Dungern Amazon Expedition (Ufa), 1924–1925.
Rangnow, R. (1938). Tropenpracht und Urwaldnacht: Auf Tierfang am Amazonas (p. 96). Leipzig: Gustav Wenzel & Sohn (Photo: Public Domain).
Figure 3
Donation list of specimens presented by Adolf von Dungern from the Brazilian Amazon to the Zoologisches Museum Berlin, 2 October 1925. Archiv Museum für Naturkunde Berlin, S-02-01-03-01, 1933, Bl. 16, Korrespondenz mit Adolf Freiherr von Dungern.
Figure 4
Skull of a pink river dolphin (Inia geoffrensis), donated by Adolf von Dungern to the Zoologisches Museum Berlin in 1930. From Museum für Naturkunde Berlin, Mammal Collection, ZMB_Mam_41500. Photo: Rodrigo Campos Castello Branco.