Researchers have mapped supergenes in butterflies, sparrows, ants and a few other species in recent years, but Jiggins expects that the phenomenon is relatively uncommon. (scientificamerican.com)
Some 500,000 years ago, portions of the inverted supergene flipped back to the correct orientation, creating a second version. (scientificamerican.com)
(1) Ore tonnes mined for the three months ended March 31, 2017 included 594,000 tonnes of primary ore (Q1 2016 — 605,000) and 57,000 tonnes of supergene ore (Q1 2016 — 732,000). (nevsun.com)