Free video about Cute Starfish. This free video was created for you by http://epsos.de and can be used for free under the creative commons license with the attribution of epSos.de as the original author of this Cute Starfish video. Thank you for supporting the creative commons movement !! Cute Starfish are a group of echinoderm animals that live in the sea. All the species have a star-shaped body which consists of a central disk with at least five elongate lobes which the arms are referred to as. Most species have five arms, but the number of arms may also be higher, and up to several dozen. The central body disc is actually a large stomach, wherein the mouth opening is positioned at the bottom. When the species of Cute Starfish that an anus possess, the seats located on the upper side of the body. Many Cute Starfish have a brown to gray color, and are well camouflaged. Other species are orange, red, purple, pink, blue, green or yellow. Some species are completely engaged with spines and other species have just a smooth body surface. Dashed vertical arms are many channels, which end up on the outside of the body in the tube feet are often provided with sticky pans. The tube feet are located on the underside of the arms of the Cute Starfish. Each arm has a pair of elongate members are present which provide the digestive system and as a gastro-intestinal tract may be considered. Each arm also contains the reproductive organs. Each arm of the Cute Starfish has a recess on the underside which a nerve cord and a water vascular canal is situated. Cute Starfish may be lost or damaged parts of the body regenerate. Cute Starfish are found worldwide in the sea, they live tidal waters into the deep sea. There are no known species in fresh water or land life. The best known species in Belgium and the Netherlands, the common Cute Starfish ( Asterias rubens ), with a diameter up to 50 inches can achieve. Cute Starfish are one of the largest groups of echinoderms and are represented by about 1,900 different species. There are also many extinct species are known. For many people, Cute Starfish known marine animals, they are often found alive on the beach and tidal pools. Cute Starfish have no pairing but put off their gametes into the seawater. Some species have a form of parental care, especially species that live in very cold water. They protect the eggs so that the offspring has a greater chance of survival. The larvae of Cute Starfish are free swimming and not at all resemble the parents. They look like small, transparent, shrimp-like creatures. The larvae undergo several stages of development before they turn into a little Cute Starfish and settle permanently on the bottom. Cute Starfish are only found in salt (sea) water, but some species can also survive in brackish water, such as coastal areas near river mouths. An example is the common Cute Starfish, which can live in a salinity of 8 per thousand, or about half sweeter than seawater. There are no known species that live on land or in fresh water. Cute Starfish live mostly on sandy soils, rocks, corals or other hard substrates. Some Cute Starfish can bury themselves literally, but they can not dig as the related sea cucumbers are known. Cute Starfish allow themselves to a few millimeters below the sand bags to move. The grains of sand to the edges of the tube body with the feet The body thus comes to lie deeper and deeper until it is completely covered with sand. To avoid the Cute Starfish catch my breath the openings between the spines on the body is used as a water buffer. Most Cute Starfish species live in coastal waters. The habitat of many species is not so much determined by the physical environment, but by the supply of prey. If there are many prey are, Cute Starfish in large numbers can occur, but if the food source is exhausted, the animals leave the area in search of other foods. On the European coasts are Cute Starfish usually on hard bottoms to find: rocky coasts, levees, harbor walls, et cetera. Other Cute Starfish prefer sandy soils, where they can dig. Most Cute Starfish avoid direct sunlight during the day and stay in rock crevices and caves or among the algae. The common Cute Starfish is as much for rock mud and sandy soils. This Cute Starfish lives of bivalves and wherever they find prey occur. Thank you for supporting the creative commons movement !!

• published: 24 Oct 2014
• views: 18