You need to respect nature because it is very valuable

How a Sausage Dog Works (1972)

Directed by Julian Józef Antonisz

Polish animated short film that uses unconventional film techniques such as cut-out, drawing, filming miscible fluids and scratched images. Also uses non-camera technique such as drawing directly on film. The film is a humorous lecture on the internal structure of a dachshund. Parodying popular lectures at the same time, it contains a message about the superiority of the products of living organisms' techniques and calls for respect for the environment.