Schaus swallowtail butterflies
As the Miami Herald reported, there were only four of these once-abundant swallowtail butterflies to be found in their native regions of southern Florida back in 2012.
Researchers at the University of Florida jumped to their aid, and two years later their breeding program yielded 1,000 larvae, from which 50 grown butterflies and 200 caterpillars were released into Biscayne National Park. By 2016, hundreds were counted out in the wild.
