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Predator-prey relationships scientific report
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Arctic hares have unusual habits that help protect them from cold environment and predators. Sometimes they huddle in large groups, hundreds of them, keeping their bodies close together for warmth and it’s harder to attack if together. If a hungry wolf or arctic fox happens to surprise the group, the hares scatter into different directions and confuse their predators with their speed and numbers so they have a greater chance of surviving/getting away. At rest, arctic hares appear smaller than they actually are. They sit on their legs and flatten their ears to conserve their body heat. Unlike hares that live in warmer regions the Arctic Hare has relatively short ears; which have developed that way to limit its body's exposure to the cold.
Cactus
The general characteristics of minks is that they are mammals just like humans, which means that we both are born with hair, mammary glands for the females and different characteristics in our anatomy to those of birds and reptiles. Their scientific name is Mustela Vison. The mink has very long trunk, short legs and very large neck. The tail is thick and the feet are slightly webbed enabling them to swim better. In all the mink measures about 12-15 inches long and weight 1 ½ to 3 pounds. The fur is very dark almost black, on the chin the fur is white with a little white fur on its throat.
They survive in some of the coldest places on earth, they have a number of anatomical, behavioural and physiological adaptations that allow them to do this successfully. Arctic wolves live for around 7 to 10 years in the wild.
Kenneth Coates, author of Furs Along the Yukon: HC-Native Trade in the Yukon River Basin examines and explores the Fur Trade of the Yukon River Basin before the Klondike Gold rush in pursuit to analyze the early economic development of Yukon. Coates furthermore attempts to question the native-European exchange in one of the last regions of initial contact between aboriginal residents and Europeans in North America. It was believed that the miners and the Herschel Island whalers impacted the fur trade, varying the customary demands of the natives and transformed the native economy and HBC, and Americans, whom didn’t have significant impact of the structure and content of the fur trade. The Natives recognized their own necessity to trade and
Abiotic factors of the arctic tundra are strong winds, little precipitation. Also very short summer days, instead there are very long and cold winters. There is poor soil and a permafrost which is a layer of permanently frozen subsoil. The biotic factors are that plants and mosses have to adapt to the long and cold winters, since the sun does not come up during winter. Also the wildlife animal that live there are Snowy owls, reindeer, white foxes, lemmings, arctic hares, wolverines, caribou, migrating birds, mosquitoes, black flies, and the chief predator the Polar
The color of the fur varies depending on the location of the its habitat. Generally, koalas living in the South have fur that is darker than those living in the North. The fur protects the koalas helps maintain its temperature from cold and hot weathers. It also acts as a raincoat and repels water. In cold weathers, the fur acts as a great insulator and protects koalas from losing too much energy (calories) fighting the cold. Furthermore, in hot weathers, the fur protects koalas from losing water in their body. Regarding a koala’s posture and habitat, it has a denser fur on its rump that is consisted with tougher connective tissues. The thick fur acts as a cushion for its bottom when sitting on a tree. The fur of koalas keep their body temperature stable and provides a cushion for its usual posture sitting on a
North Alaska is part of a continental fragment called the Arctic Alaska microplate. Upon this microplate, the North Slope and its continental shelves reside. During the Paleozoic and early Mesozoic time periods this plate was a passive continental margin. Later on during the Jurassic and Cretaceous time periods, rifting along this margin separated the plates. The Canada basin and Beaufort passive margin were created due to drift and rotation. At the same time the Arctic Alaska plate collided with an oceanic island ac which then created the Brooks Range orogeny and the North Slope foreland basin. The Southern portion of the North Slope basin is a fold and thrust belt which contains extended anticlinal folds diminish toward the
The habitat of the Arctic wolf is a very harsh place. The temperature must be below zero degrees. There are tundra, rolling hills, glacier valleys, ice fields, shallow lakes, and green flatlands (Arctic/Antarctic: The Arctic Wolf). These snowy white creators don’t have that many places to live. Arctic wolves used to be everywhere in North America, but sadly now they are reduced to Canada, Alaska, Idaho, Michigan, Minnesota, Montana, Wisconsin, and Wyoming (Arctic/Antarctic: The Arctic Wolf). Arctic wolves are one of the most dangerous types of wolves; people need to find a way to save them and their habitat before they disappear forever.
The climate of the tundra is characterized by harsh winters. The average temperature in the tundra area is about –27 degrees. But what is even worse are the long night. At nights the lowest temperture recorded was –67.36 degrees. There are even times in the year when the sun doesn’t come up for days. In the tundra we have little snow and even less rainfall. The rainfall is about a quarter inch in a yearly rainfall. Even though the tundra’s winters are long a harsh there summers are the shortest season of all. Do to the terrible weather and climate in the tundra their animals and plant life is very limited.
* Perhaps the most noticeable and striking characteristics of a polar bear is its color. The fur shafts themselves are not white. The shafts actually lack pigmentation and are transparent which allows them to scatter and reflect light resulting in ideal camouflage in a world of ice and snow.
It allows them to live long because they have two different genes in them and it also allows them to survive anywhere in the world because their fur is mixed. They have brown fur that allows them to be on land for a long amount of time and they have white fur which allows them to live in the snow and let them stay in freezing water for a long amount of time.
The winter will last 8 to 10 months followed by the short and much less cold summer. During the summer some lower areas of the Tundra will defrost at which point most of the flora and fauna will start to creep out of hiding. The few summer months are used by many animals such as the polar bear, to mate and to prepare for the once again oncoming winter. During the winter months, most everything remains frozen. Many of the animals migrate south for the winter whereas some stay behind or even group together for ritual group suicide (lemmings).
“200 years ago, there was around 16 million greater sage grouse; Today there may be fewer than 200,000” (Dantzker and Swartwout). The Greater Sage Grouse (Centrocercus urophasianus) is a magnificent bird that only lives in the Sagebrush-steppe habitat. This habitat is seen in the western part of the United States and also some area of North and South America. From the study above, it should be obvious that the greater sage grouse were considered endangered by Fish and Wildlife Organizations. However, on September 30th, 2015, the U.S. Fish and Wildlife Organization removed the sage grouse from the endangered “candidates” list, and stated that they would enforce plans to help the conservation of these birds. People should be aware that this is
sea otters are from the kingdom animalia. Sea otters are stouter and have large rib cages, smaller tails and muzzle than other species of otters. Yet sea otters posses the fine, dense fur coats characteristic of the Mustelidae. Their forefeet are small and dexterous with retractile claws and the flipper like hind feet are broad and webbed. Sea otters once was abundant along most coastal North pacific ocean. That was before fur traders hunted them for their thick ice, luxurious pelts. By the year 1900, sea otters were nearly extinct . Protected since 1911, alaska sea otters have made a comeback. There lifespan is 10-15 years. Great white sharks are the primary predator of sea otters and occasionally eaten by coyote so the predators that the
Elizabeth Bishop's "The Moose" is a narrative poem of 168 lines. Its twenty-eight six-line stanzas are not rigidly structured. Lines vary in length from four to eight syllables, but those of five or six syllables predominate. The pattern of stresses is lax enough almost to blur the distinction between verse and prose; the rhythm is that of a low-keyed speaking voice hovering over the descriptive details. The eyewitness account is meticulous and restrained.
The polar bear has a long, narrower head and nose, and small ears. The polar bear has coat that appears white but, each individual hair is actually a clear and hollow. This helps the polar bear keep warm. The polar bear's coat helps it blend in with its snowy surroundings, this adaptation helps the Polar Bear hide while hunting. The polar bear's front legs are slightly pigeon-toed, and fur covers the bottoms of its paws. These adaptations help the polar bear keep them from slipping on ice.