Nature has a way of reproductively isolating each species of organism in order to ensure that inter-species breeding does not take place and if it does takes place, the resulting offspring will appear infertile. For example, humans have been reported and are known to engage in sexual activities with animals such as horses, dogs, apes etc but have never been able to produce human/animal hybrid.

I have seen quite a number of movies created on the idea that the product of the cross breed between man and animal will posses special abilities. Man can be over ambitious, am glad nature puts such things in check, preventing us from endangering ourselves. Just imagine how it would be to have a co-worker with a dog face.