Not just French. They're popular in many parts of the South US as well, particularly in areas with Cajun/French influence. And delicious.

And yeah, just the legs.

Frog legs are eaten in many parts of Europe (except Germany apparently) So much that some indigenous frog species have become endangered, and frog legs are more often imported from South-East Asia these days.

BTW. I had also expected the article to be about actual frogs: about how endangered some species are, or how the flesh may contain pollutants or diseases.

Yes, we only eat the legs :)