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.
Lice. Canines are vulnerable to two types of lice. The bloodsucking louse is Linognathus setosu, while the biting or chewing louse is Trichodectes canis. If you look at the louse under a microscope, you'll see a creature with a wide head and large jaws. Because the lice have strong claws, they can adhere to the hair shaft in the dog's coat and are tough to dislodge. Lice are species-specific, so your dog's lice won't chew on you. Signs