In zoos, lions and tigers mate and produce viable hybrid offspring called tigons or ligers. Hybrids were...?

never recorded in Asia, however, where their ranges once overlapped. What is the most likely reason hybrids do not occur in the wild? A. reduced gametic viability B. gametic mortality C. mechanical isolation D. behavioral isolation E. hybrid infertility

In zoos, lions and tigers mate and produce viable hybrid offspring called tigons or ligers. Hybrids were...?
D.


Seems like the most reasonable answer. Animal communication is important in having members of the same species find each other for mating; ritual behavior, pheromones,etc. In a zoo they have a "captive audience", so to speak, with a little prodding from humans.