A large green aquatic frog of mainland Europe, popular as food in some regions.
Rana esculenta, family Ranidae.
What's more, even as the Central Valley became a major source of edible frogs, Californians were converting wetlands to farmland on a massive scale....
Without enough R. lessonae to mate with, however, edible frogs couldn't reproduce.
The genome of the Edible Frog (R. esculenta) therefore consists of two parts of each of its parent species.