is there a sentence fragment? the red wolf of the southeastern united states became extinct in the wild in…

is there a sentence fragment? the red wolf of the southeastern united states became extinct in the wild in 1980. after scientists created a breeding program with a few red wolves in captivity. yes no
Answer
Brief Explanations:
The second part "After scientists created a breeding program with a few red wolves in captivity." is a dependent - clause starting with a subordinating conjunction "After" and lacks a main clause to complete its thought, so it is a sentence fragment.
Answer:
yes