The alternation of hosts in a fish tapeworm (Dibothriocephalus latus).
Grzimek's Animal Life Encyclopedia: vol. 1 - Lower Animals. Written by Dr. Bernhard Grzimek. 1974.
Internet Archive
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The alternation of hosts in a fish tapeworm (Dibothriocephalus latus).
Grzimek's Animal Life Encyclopedia: vol. 1 - Lower Animals. Written by Dr. Bernhard Grzimek. 1974.
Internet Archive
classical outfit for my driving license photo / trees covered in snow / the broad fish tapeworm development cycle