A scientist mates a blue population of lizards with a red population of lizards. She observes that one out of ten hybrid offspring survive to adulthood compared to roughly, eight out of ten blue or red lizards. This is an example of
A - Mechanical isolation
B - Hybrid zygote abnormality
C - Hybrid infertility
D - Low hybrid viability
E - Gametic isolation
Answer: D - Low hybrid viability
This is when the viability (ability to live) of the hybrid is significantly lower than the parents.