What Is a Sea Mouse

Despite its name, the sea mouse is not a type of vertebrate, but a type of worm. These bristled worms live in muddy ocean bottoms. Here you can learn more about these interesting ocean animals. Description The sea mouse is a wide worm—it grows to about 6 inches long and 3 inches wide. It is a segmented worm (so, its related to earthworms youd find in your yard). The sea mouse has 40 segments. Looking at its dorsal (upper) side, it is hard to see these segments as they are covered with long bristles (setae, or chaetae) that resemble fur, one characteristic that gives this worm its name (theres another, more racy one, described below). The sea mouse has several types of setae—these bristles are made of chitin and are hollow. Some of the finest bristles on the back of a sea mouse are much smaller in width than a human hair. Despite its drab appearance in some situations, the setae of a sea mouse are capable of producing spectacular iridescence. On the worms underside, its segments are clearly visible. The segments have leg-like appendages on each side called parapodia. Sea mice propel themselves by swinging the parapodia back and forth. The sea mouse may be brown, bronze, black or yellow in appearance, and may appear iridescent in certain light. Classification Kingdom: AnimaliaPhylum: AnnelidaClass: PolychaetaSubclass: AciculataOrder: PhyllodocidaSuborder: AphroditiformiaFamily: AphroditidaeGenus: AphroditellaSpecies: hastata The species described here, Aphroditella hastata, was previously known as Aphrodita hastata. There is another sea mouse species, Aphrodita aculeata, that lives in the eastern Atlantic along the coast of Europe and the Mediterranean Sea. It is said that the genus name Aphroditella is a reference to the goddess Aphrodite. Why this name for such a strange-looking animal? The reference is supposed because of the resemblance of a sea mouse (particularly the underside) to a female humans genitalia. Feeding The sea mouse eats polychaete worms and small crustaceans, including crabs. Reproduction Sea mice have separate sexes (there are males and females). These animals reproduce sexually by releasing eggs and sperm into the water. Habitat and Distribution The sea mouse species Aphroditella hastata is found in temperate waters from the Gulf of St. Lawrence to the Chesapeake Bay. The bristles are covered with mud and mucus - this worm likes to live in muddy bottoms, and can be found in water from 6 feet to over 6000 feet deep. Since they usually live in muddy bottoms, they are not easy to find, and are usually only observed if dragged up with fishing gear or if they are thrown on the shore in storms. The Sea Mouse and Science Back to the sea mouses setae - the setae of sea mice may be paving the way for new developments in tiny technology. In an experiment reported by New Scientist in 2010, researchers at Norwegian University of Science and Technology plucked fine setae from dead sea mice, and then placed a charged gold electrode at one end. Into the other end, they passed charged copper or nickel atoms, which were attracted to the gold on the opposite end. This filled the setae with charged atoms and created a nanowire—the largest nanowire yet produced. Nanowires can be used for linking parts of electronic circuits, and for making tiny health sensors used within the human body, so this experiment could have important applications. Sources and Further Information Fauchald, K. 2012. Aphroditella hastata (Moore, 1905). In: Read, G.; Fauchald, K. (2012). World Polychaeta database.  World Register of Marine Speciesjonbailey. Sea Mouse Nanowires.  Meinkoth, N. A. National Audubon Society Field Guide to North American Sea Creatures. 1981. Alfred A. Knopf: New York. p. 414-415.Memorial University of Newfoundland. Sea Mouse.  Moore, J.P. 1905. A New Species of Sea-mouse (Aphrodita hastata) From Eastern Massachusetts.  Parker, A.R., et. al. 2001. Photonic engineering. Aphrodites iridescence. Nature.  Real Monstrosities: Sea Mouse

Do Violent Video Games Help Young Children - 849 Words

Do violent video games contribute to young children? Violent video games do contribute to young kids. There is a need to inform how children can be affected by violent video games since these games have become more popular and widely available. The first reason why violent video games are bad is because it can become addicted. Addictions involve unhealthy attractions that keep up with regular daily responsibilities such as forgetting to do school work, homework, and chores around the house. Another bad thing that addiction causes is that children and young teens interact less with others. They rather be antisocial and hang out less with friends, in order to play a video game on the Xbox, PS3, or computer. Teens who are obsessed with video games and play for long periods of time can often go an entire day without leaving their room to eat, use the restroom or to bathe. The study found that â€Å"88 percent of the nation s children ages 8 to 18 play video games. With 45 million children of that age in the country, the study would suggest that more than 3 million are addicted or at least have problems of the magnitude that call for help, Gentile said† (George). The effects of this behavior can be serious danger to their overall health. Second, it increases aggressive behavior in young teens. When teens see blood pouring out of a body, they start to enjoy what they see every time they play a violent video game. Then they start to think about how to bring the violent game intoShow MoreRelatedVideo Games : Video Game Violence1502 Words   |  7 Pages2013 Video Game Violence The evolution of video games has taken a drastic change since the 1970’s when video games were first introduced. Since then every decade video games have become more violent in nature with strong language and realistic to suit society today. 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