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Evolutionary processes such as recombination and natural selection usually develop over extended periods of time; however, they get accelerated in cases of hybridization. Interspecies hybrids exhibit novel genome which are exposed to natural selection, thus provides a key to unravel the ultimate causes of adaptation and speciation. On the other hand, with rapid upsurge in demand for stronger food security has been confronting us on daily basis. Lately, the scientists have started to gather are now attracted by specific extraordinary traits of different animals by way interspecies hybridization combining the superior genetic material from different animals. Besides, this technology could also explore new life saving vaccines and medicines and also would find beneficial in conserving wild heritage of endangered and critical species. Several researchers have also done commendable work on interspecies hybridization with some degree of success. Nevertheless, lots of obstacles and hurdles still pose for this phenomenal technology to reach to its final destination. This review will point out the hurdles on interspecies hybridization in reference to the natural mating and somatic cell nuclear transfer (SCNT).