External gills usually contains muscle tissue, and may be moved by the animal as a free appendage, in order to stir up stagnant water. The stalk is lined by many thinly walled filaments (fimbriae), containing the majority of blood vessels used in gas exchange. Animals usually have one external gill originating on each gill arch (except the hyoid), which leads to there being three pairs of external gills in salamanders, and four in the gilled larvae of lungfish. External gills External gills are the gills of an animal, most typically an amphibian, that are exposed to the environment, rather than set inside
Half Pint toured the United States with Slightly Stoopid on their 'Unity' tour. Half Pint has been featured as a guest on a number of songs by other artists including: Half Pint Half Pint (born November 11, 1961 and sometimes credited Lindon Andrew Roberts) is a Jamaican dancehall, ragga, and reggae singer. He originates from the West Kingston enclave of Rose Lane; a community which has produced reggae acts such as Bob Marley, Dennis Brown, Peter Tosh, Lee "Scratch" Perry, and Toots Hibbert. Half Pint began singing in the school choir at All Saints' Primary School. After the completion of his secondary