sentences:  Professional capacities of concern and subjects communicated to the public in earlier phases of zoo development are now vital services to conservation.As conservation centres, zoos must additionally address sustainable relationships of humankind and nature, explain the values of ecosystems and the necessity of conserving biological diversity, practice the conservation ethic throughout zoo operations and cooperate within the world zoo network and with other conservation organizations.In recent years, great emphasis has been placed on creating new and dynamic exhibits at zoos that provide significant enrichment opportunities for the animals on display while also offering visitors a unique viewing and learning experience.