The Interbreeding between Species - Essay Example

Reproductive isolation mechanisms that exist make some individuals incapable of fertile interbreeding. This occurs when interbreeding leads to offspring that are not viable. The word " capable " means that the organisms are accessible and willing to mate naturally to reproduce. The anatomy of many organisms indeed qualifies their ability or inability to breed. However, if there is no reproductive isolation, organisms of different species are capable of fertile interbreeding. The dog and the wolf are both from the same group, Canis, and they have the capability and desire to interbreed because they are closely related and their offspring are viable. For instance, taking the German Shepherds as an example, they are a cross breed of dogs and wolves, and they are known for their high intelligence, strength, and obedience training. An example of an infertile offspring is the mule- a result of the interbreeding between a horse and a donkey. This shows that fertile interbreeding between two distinct species should not be considered a surprise. This is because it does not matter which species two organisms come from as long as a fertile offspring is reproduced.