Modern genetics has always been a highly discussed and sometimes even controversial topic. The issue of biological hybrids is not much different. Animal rights activists claim that the pairing between animals or birds of different species in the wild is a state of exception that should not be repeated with animals that are living in captivity. Yet scientists believe that such crossbreeding is a natural part of evolution, and thus an unstoppable process whose observation and research could turn out to be highly beneficial for modern society. In order to find out more about the issue of biological hybrids, its main terms, concepts and examples – read this book.