Chimpanzees are kept in a large enclosure at the Arnhem Research Station. There, some experiments are carried out to test the intelligence of the chimpanzees.
| Tagline | |
| Release Date: | Jan 01, 1981 |
| Genres: | Documentary |
| Production Company: | |
| Production Countries: | Germany |
| Casts: | |
| Status: | Released |
| Budget: | $0 |
| Revenue: | 0 |
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