Plenty of poets wrote them, but the most famous of all is John Milton's  Lycidas . Like all typical pastoral elegies, Milton mourns the loss of his best bud (who died in a shipwreck). But he also compares him to a shepherd and describes the ways in which nature mourns his loss, too.
The Banff longnose dace, a small minnow, was recently declared extinct. It failed to compete with the guppies, swordtails, sailfin mollies and other tropical fish that had been released in the warm marsh below the famous hot springs by tourists and national park officials.
Dunkleosteus. Dunkleosteus is an extinct genus of arthrodire placoderm fish that existed during the Late Devonian period, about 380â360 million years ago.Some of the species, such as D. terrelli, D. marsaisi, and D. magnificus, are among the largest arthrodire placoderms ever to have lived.unkleosteus. Dunkleosteus is an extinct genus of arthrodire placoderm fish that existed during the Late Devonian period, about 380â360 million years ago.