Hybrid zones are regions where two distinct species meet and interbreed, resulting in offspring that may exhibit traits from both parent species. These zones provide valuable insights into the process of evolution and how species adapt to their environments. They often occur in areas where habitats overlap, allowing for genetic exchange and the emergence of new traits. In hybrid zones, researchers can study the dynamics of natural selection and genetic variation. The interactions between the parent species and their hybrids can reveal important information about speciation and the factors that influence the survival and reproduction of different organisms in changing environments.