What is an example of hybrid inviability?

Hybrid inviability refers to a situation where the hybrid offspring resulting from the mating of two different species do not survive to maturity due to developmental issues or incompatibilities. In this context, when a hybrid does not survive the early developmental stages, it aligns perfectly with the concept of hybrid inviability. This occurs when genetic, physiological, or environmental factors prevent the successful development of the hybrid, leading to its death before reaching a stage where it could function as a mature organism.

The other options describe different outcomes related to hybrid viability and fertility, such as hybrids that mature but are sterile, hybrids that can reproduce but have infertile offspring, or hybrids that are fertile but have reduced success of offspring, which do not fit the definition of hybrid inviability. Each of these alternatives focuses more on reproductive traits or outcomes rather than the survival aspect inherent in the definition of hybrid inviability.