Macrobdella decora , the North American medicinal leech, is a species of freshwater leech found in Canada, the United States, and Mexico. A medium-sized annelid growing up to 8.5 cm (3.3 in) long, it has a spotted greenish-brown back and a reddish underbelly. M. decora is commonly encountered by swimmers and lives in ponds, ditches, and wetlands. The leeches are both blood-sucking parasites and aggressive predators. They have three saw-like "jaws" which they use to penetrate their host's skin, and they can remain attached for up to two hours. Their hosts include fish, turtles, wading birds, and mammals, including humans. The leeches are also voracious predators who eat other invertebrates, amphibian eggs and larvae, and sometimes even members of their own species. M. decora was historically used for leeching by European colonists in North America, who found the native leeches "equally efficacious" as those from Europe. ( Full article... )
December 9 : International Anti-Corruption Day
| | George Grossmith (9 December 1847 – 1 March 1912) was an English comedian, writer, composer, actor, and singer. As a writer and composer, he created eighteen comic operas, nearly a hundred musical sketches, some six hundred songs and piano pieces, three books (including the 1892 comic novel The Diary of a Nobody ), and both serious and comic pieces for newspapers and magazines. In a four-decade career as a performer, Grossmith created a series of nine characters in Gilbert and Sullivan comic operas from 1877 to 1889, such as Major-General Stanley in The Pirates of Penzance . Grossmith then became the most popular British solo performer of the 1890s; some of his comic songs endure today. This 1881 photograph shows Grossmith posing in costume as Reginald Bunthorne in a production of Gilbert and Sullivan's Patience at the Opera Comique in London. Photograph credit: unknown; restored by Adam Cuerden Recently featured: |