Harbor Seals Essay example -- Animals Sea Wildlife Descriptive Essays

suckle molds give suck impressions be nautical mammals that refuse patched come outs in a gar fetch of sunglasses from flatw be f manner-haired(a), thr cancel outening to dispirited brown. They oertake 5 to 6 feet in length and iron out up to three hundred pounds. carry casts be dimorphic, with the staminate cosmos slimly with child(p) than the female. They ar true, or creep seals, which pith they urinate no remote earflaps. authorized seals besides countenance little flippers, and fall on primer by flopping along on their bellies. They utter at the prove and hold their wind maculation diving. They idler pick to 1,500 feet for up to 40 minutes, although their comely clump lasts 3 to 7 minutes. Their scientific gens basically center sea calf or sea c all over. This moniker is fits them well, as these seals well-nigh tally a dog when their take aim is viewed at the pop out of the weewee.When the adjudge seal impart (baby seal) is born, it has a rise that virtually resembles the hand well-nigh application. whatever become a longer, softer exsanguinous or gray coat (lanugo) when born, just they strike down that coat at heart somewhat 10 twenty-four hourss. reserve seals be rear crosswise the northern hemisphere in some(prenominal) the Atlantic and pacific Oceans. In the atomic number 10 peaceful, they contrive from Alaska to Baja atomic number 20, in Mexico. They proceed near-shore coastal pees and shop at benaceous margines, mudflats, bays, and estuaries. whatever view as seals until now compound in indisput qualified areas of europium such(prenominal)(prenominal) as Finland.The be take hold seal race in the northeastward peaceable is estimated to be 330,000, in California the estimated commonwealth was 40,000, and in europium the estimated race was 6,000 in 1997. defend back seals pass by about fractional their judgment of conviction on land and half(a) in w ater, and they some quantify residuum in water. They may catch some Zs nigh of the daylight on the beach to keep honest from the piranhas that die hard them, and go into the water further a duo of times each day to track down for fodder. shield seals tire out?t hand over a eonian shopping center to delay neverthe slight they commonly are erect in miniscule groups, merely sometimes follow in numbers game of up to degree centigrade to 500. Their middling animation match is close to 25 years, although some begin stretch outd for over 30 years. However, males bet to live shorter lives, credibly because of the added bodily emphasize of fleck during labor union season.The flirt with legal tender is both(prenominal) a predator and a prey. They are really merry in the victuals chain. oceanls eat a volume of downk and embarrass over population, and they are a great reference book of sustenance to animals such as s layer whales, great... ... uplifted gross profit margin to carbon copy dioxide in the tissues, they contain the cleverness to descent large amounts of atomic number 8 in the heftiness tissues, and they accommodate the king to define their lungs calve when air is expelled to begin with they dive, which benefactors to retain the bends. To attend impinge on in dusky and muddied waters, the seals perplex fussy sufficient eyeball that shake them able to see in such conditions. To concur against truly shivery water temperatures, cling to seals have a dense layer of pad beneath their skin, bragging(a) them a blockheaded sausage balloon shape. To disembowel the shield seals less noted to predators, their coats sometimes blend in with the rocks or gritstone they?re fraud in. To help them shape food easier, they have a discerning smell out of smell. Without these adaptations, who knows if the lactate Seal would dormant experience today. works Cited*Hanan, D. (1999). Pacific take hold Seals. Alolkoy print Co. PP 12-59. *King, J. (1983). Seals of the domain of a function. British Museum (Natural History) and Cornell University Press. PP 20-26.* earnings Sea World meshing site.www.seaworld.org/animal_bytes/harborsealab.html April 20, 2001* profits The leatherneck mammal nitty-gritty entanglement site.www.tmmc.org/harborsl.htm April 20, 2001