Scenario
In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." Male ligers are sterile but some female ligers are fertile. In the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. Furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences.
-The production of sterile male ligers is an example of ________.

Question

Quizplus · Accepted Answer

The production of sterile male ligers is an example of a postzygotic barrier, which occurs after fertilization and results in hybrid offspring that are sterile or less viable.

Scenario in Some Zoos, Rare Crosses Between a Male Lion and and a Female