Enriching the habitat of animals is an essential component of animal care work in a modern zoo. Young biologists of the zoo also joined this extremely important matter and conducted an experiment on enriching the habitat of the primates of Mykolaiv Zoo as part of the meeting of our scientific society. Houses made from natural materials were used for this purpose. Such work is necessary for animals and very useful for young scientists who learn to conduct experiments and record the results of their observations, as well as interesting for visitors who also have the opportunity to observe the behavior of animals.