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Adaptation of kangaroos to arid regions
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Kangaroo? W-w-what is that?... I'm confused. Well, the kangaroo is an animal that lives in Australia, which is found in the Oceania region. The kangaroo is on the Coat of Arms and the Australian dollar coin. The kangaroo is also the national symbol of Australia. When kangaroos are alone they are nocturnal, which means that they sleep during the day and come out at night, but when they are in a group or mob, they are not. The male kangaroo is called a boomer, the female kangaroo is called a flyer, and the baby kangaroo is called a joey. The word kangaroo or macropod, means great-footed. The reason why kangaroo means great-footed is because they have strong back legs with very long feet which help them to hop, hop, hop. They also have two short arms and a tail which is used for balance. Kangaroos are usually a reddish-brown color but sometimes they are grey. Most kangaroos have darker fur on their feet, …show more content…
In Australia the temperature ranges from 50°F to 77°F all year long. When it gets too warm, the kangaroos cool themselves down by covering their arms, legs, and underside with their spit to prevent overheating. Sometimes kangaroos will go into caves if it's too hot even after they have tried to cool themselves. Abiotic factors of the kangaroo are dirt, water, air, sun, and sand. The reason those are abiotic factors are because they were never were living. Biotic factors of the kangaroo are grass, fungi, seeds, spiders and insects. The reason those are biotic factors are because they were and alive. Kangaroos are herbivores, which means they only eat plants. Some predators of the kangaroo are humans, dingoes, and the Tasmanian wolf. Humans are predators of the kangaroo because we hunt them for their meat and skin. Dingoes are predators of the kangaroo because they hunt them down and eat them. The Tasmanian wolf is a predator of the kangaroo because they also hunt them down and eat
Koalas have pear shaped bodies that help in balancing and positioning themselves in tree forks. They also have reduced tails and long limbs that help in ...
Unlike the maned wolf and coyote, Darwin’s fox lives in the temperate forests, especially near Chile, or any other place in South America. Some species live on Nahuelbuta National Park or in Chiloe Island. Alike the coyote and maned wolf, Darwin’s fox is omnivorous and a secondary consumer. It eats mammals, invertebrates, reptiles and birds as well as fruits. Because of it’s small size, Darwin’s fox is easier to get caught by predators such as wild and domesticated dogs as well as pumas.
The destruction of their habitat and destruction are the two great threats to the gorillas. The places where they are found are poor and densely populated. The land that is set aside for gorillas is being taken over by agriculture. The wire traps that poachers set out for antelope usually end up catching gorillas instead. People kill them for their heads and hands as trophies. The western lowland gorilla is listed as an endangered species.
Calyptorhynchus banksii, or red-tailed black-cockatoo, has coped with extreme variations in its environment. Much like the plant species of Australia, the red-tailed black-cockatoo has evolved physiological and anatomical adaptations that have allowed it to survive in changing surroundings. One of the most prevalent adaptations was that seen in the beak apparatus. Changes in the beak allowed the cockatoos to consume the newly evolved sources of food. The metabolic requirements of the cockatoos and the availability of food are also forces that have influenced the beak apparatus and the distribution of red-tailed black-cockatoos throughout Australia.
Dawson, Terence J. 1972. "Thermoregulation in Australian Desert Kangaroos." Comparative Physiology of Desert Animals 31: pp. 133-146.
The processes of predation affect virtually every species to some degree or another. Predation can be defined as when members of one species eat (and/or kill) those of another species. The specific type of predation between wolves and large ungulates involves carnivores preying on herbivores. Predation can have many possible effects on the interrelations of populations. To draw any correlations between the effects of these predator-prey interactions requires studies of a long duration, and statistical analysis of large data sets representative of the populations as a whole.
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
First and foremost, they live in the wild part of Tasmania, in Australia. Tasmanian devils during the day scour the land to find shelter, anywhere they can. Primarily, in caves, or bushes, hollow logs, and sometimes old wombat burrows. They lived on the mainland here of Australia, although their fossils suggest that they died out of the mainland in the 1600’s, before the Egyptians had settled. These animals are mainly black, but some have a minuscule amount of white markings, usually around the tail, and on the chest. Their oversized neck, jaws, and head, is what help them hunt. During the night, sometimes people can hear an eerie growl. What happens when a group of devils feed together at only one carcass? People can hear harsh screeching, and spine chilling screams. (“Tasmanian Devil”).
These scientists reviewed the natural space-use patterns and hippocampal size in kangaroo rats after undergoing evolution by natural selection. The size of the hippocampus, a forebrain structure that processes spatial information, correlates with the need to relocate food caches by passerine birds and with sex-specific patterns of space use in microtine rodents. The influences on hippocampal anatomy of sexual selection within species, and natural selection between species, have not yet been studied in concert, however. Here we report that natural space-use patterns predict hippocampal size within and between two species of kangaroo rats (Dipodomys). Differences in foraging behavior suggest that Merriam''s kangaroo rats (D. merriami) require better spatial abilities than bannertail kangaroo rats (D. spectabilis). Sex-specific differences in mating strategy suggest that males of both species require more spatial ability than females. As predicted, hippocampal size (relative to brain size) is larger in Merriam''s than in bannertail kangaroo rats, and males have larger hippocampi than females in both species. Males of a third species (D. ordii) also have smaller hippocampi than Merriam’s kangaroo rat males, despite being similar to Merriam''s in brain and body size. These results suggest that both natural and sexual selection affect the relative size and perhaps function of mammalian hippocampus. They also reassert that measures of functional subunits of the brain reveal more about brain evolution than measures of total brain
Smith, Ramsay W. Myths and Legends of the Australian Aborigines. Mineola, NY: Dover Publications, 2003. Print.
Felis catus the domestic cat, an introduced species as a direct result of the human population is responsible for 26% of the extinction of the total population of Birds, mammals, and reptiles worldwide. This has severe implications and a threat to Australian Biodiversity. The major impact suffered as a result of the Felis catus on Australian Biodiversity is the decline and in some cases extinction of mammals. Predation being responsible for the impact on
The kiowa tribe was a tribe of indians that originated in the northern plains of Canada. After their time in Canada they had to migrate south a very long way to Oklahoma and Texas which is located in North America. The Kiowa were mainly located around the Texas panhandle. The Texas panhandle is made up of western Oklahoma and northeast New Mexico.hunters. The Kiowa tribe was allies with the Comanche indians who lived in the same general area. The Kiowa tribe was a tribe of native american Indians, that traveled a long way to get to where they had to be.
In the novel, Three Day Road by Joseph Boyden, Niska, Xavier’s aunt, makes reference to a story during her youth. This story took place during the winter and highlighted periods of starvation among Niska’s tribe because of the lack of ideal food resources. As starvation became a prolonged condition and desperation levels heightened, the tribe’s hunters brought back a black bear. Niska’s father, the leader of her tribe was disturbed as he associated the bear as man’s “brother.”
The concept of virtue ethics was first developed by Aristotle in 'nichomachean ethics '. He believed that the point of ethics is to become good, and virtue ethics highlights this well. It is an agent centred idea of morality and focuses on how a person can develop virtues and what sort of person you should be, rather than how you should act in order to be good. An alternative name for it is aretaic ethics, which comes from the Greek arete meaning any kind of excellence.
Aboriginal people are the first people or indigenous people of Australia who first came to Australia in the Ice age period from Southeast Asia. Aboriginal are people with close relationship with land and maintain their link with ancestral Aboriginal spirits for more than ten thousand years. Aboriginal were nomadic hunter and gatherers who would move to find resource in different seasons. In early 1788, there were probably about 500.000 to 1 million Aboriginal people living in Australia.