Essay on Golden Eagles and Gray Wolves Reproduction

The Red Wolf can come in multiple different varieties of colors and some include; gray, black with a mixed of red especially on the legs and sides. This animal is an carnivore, mainly eating rabbits, birds, rodents, and sometimes a white-tailed deer. The life cycle of a Red Wolf consists of two wolves, the alpha male and alpha female mate, bringing in two to ten pups a litter, the pups will be taken care of by the pack. The life span of a Red Wolf can vary based on the environment around the Wolf, most of the wolves live a four year lifespan but many have found wolves older, some even

For the first time in 70 years, the howl of the Grey Wolf is being heard throughout Yellowstone Park (Sanders, 2000). In January of 1995, 14 wolves from separate packs in Canada were trapped and transported to Yellowstone. Once in the park the wolves were placed in one acre acclimation pens. In total there were three pens scattered across the northern portion of Yellowstone: one a Crystal Creek, another at Rose Creek, and the last at Soda Butte. During the wolves time spent in these pens they were fed winter kill, or road kill. The packs that were formed in these pens were released in the winters of 1995-1996 and also again in 1996-1997 for a second release period (Sanders, 2000). In 1995 fourteen wolves were released and in 1996 seventeen were released. In 1997 there were 64 pups born and since 1995, 33 wolves have died in the Yellowstone area.

On May 3, 1995 female wolf number nine gave birth to eight puppies, the first wolves to be born in the park in nearly 70 years. The mother and pups were recaptured and taken back to the acclimation pen, until the pups were weaned (Sanders par. 15). The reason for this recapture was because at this time, this wolf and her eight pups counted for almost 50% of the park’s wolf population. Since this time there have been no other human interventions preferring to let nature take its course on the population.

The gray wolf is one of the world’s most well known and well researched animals with more documentation on them than any other wildlife species. It is a canid whose main habitats are in the wilderness of remote areas in North America, Eurasia and North Africa. It is the largest member of the wolf family, usually weighing between 70 and 120 lbs, and closely resembles in general appearance and proportions to a modern day breed of dog known as the German Sheppard, although they typically have a larger head, narrower chest, longer legs, straighter tails and bigger paws. The narrow chest of the gray wolf allows for swift and efficient movement through the common elements of their environment such as snow, brush and other conditions. Their larger heads indicate their higher level of intelligence and their large paws, webbed with fur aid in movement across mud and snow. The colour of a gray wolf’s fur lives up to its name and is predominantly a mottled gray although the gray wolf can also have fur that is nearly pure white, mixes of red, brown, or black. Being very social animals, gray wolves do mostly everything in packs of 2 – 15 animals; living, traveling and hunting. They can hunt and feed off smaller game, yet with their large pack size, they can work collectively to bring down large game such as deer, moose or bison. There are 37 recognized subspecies of the gray wolf in total ranging across six continents with familiar names that one

When the wolves were first reintroduced, having 30 equally distributed breeding pairs was enough to constitute a success. A breeding pair is defined as an adult male and female wolf raising two or more pups in a year, where the pups are born between April and May and then raised till December 31. With the reintroduction of the gray wolf, a recovery population goal had to be established. That was the goal of the United States Fish and Wildlife Service (USFWS) for the recovery of the wolf population for the northern Rocky Mountains. Wolf numbers needed to be maintained at this level for at least three consecutive years. According to the USFWS 2002 was the third year where there had been at least 30 breeding pairs throughout Wyoming, Montana, and Idaho. After 2002, these wolves are still multiplying and the population continues to soar, even at this very moment.

There are approximately only 150,000 gray wolves left in the world today, but the numbers are steadily decreasing because of us humans. The gray wolf is a strong and very powerful animal seeing as it has large canine teeth, powerful jaws, keen senses, and they have the power to pursue their prey at up to 37 miles per hour. Contrary to their name the gray wolf comes in all colors from black, pure white, and also a brownish red which can cause confusion between between them and coyotes. You can tell the coyote and wolf apart because the gray wolf has round ears and a broad snout. The gray wolf can live up to more than twelve years while protected but while unprotected they can only live up to seven or eight.

Most young gray wolves disperse from their natal pack when they are between 1 and 3 years old. Gray wolves breed between January and March, depending on where they are living. Wolves are susceptible to more than one hundred diseases and parasites, including roundworm, tapeworm, flatworm, mange, mites, ticks, fleas,distemper, cataracts, oral papillomatosis, tularemia, bovine tuberculosis, arthritis,cancer, rickets, pneumonia, Lyme disease, and many other

The grey wolf is believed to have originated from asia and crossed the Pleistocene bridge around 700,000 years ago. Nowadays, the gray wolf has been hunted nearly to extinction in the lower 48 states, however, some populations managed to survive and some were reintroduced and now mostly remain in Europe, Alaska, Canada, and Asia. Although this animal remains in small amounts, there are many things found and many things to be found about how and where it evolved from. Many studies from biologist can predict that the gray wolf evolved from a primitive carnivore called a Miacis that lived approximately 65.5 million years ago that lived in warmer climates in Asia and over time was separated and the species that split into the colder regions transformed

Wedge-tailed Eagles mate for life by means of them are monogamous, and use the same nest over the years. They do their reproduction in the months from June to November. Tasmanian wedge-tailed eagles are under threat because not all the territories have breading pairs. But even if they have, each pair generally lays one egg each year.

The male often bites the females nose (upper jaw) leaving it swollen and bloody. The wounds form pink scars, which can be used to identify if the otter is make or female. Otters have a gestation period of 4-9 months, or longer depending on the breed of the otter. Eurasian otters give birth in April or May. They can have up to about 6, or so, babies. Fresh water otters give birth on land or in dens. Sea water otters give birth in the water. Sea otter pups measure up to 56-61 cm. And fresh water pups can weigh up to 130 grams (4.6 oz.). A female otter has four nipples and her babies will nurse every 3-4 hours for 10-15 minutes. Mother otters are very protective over their young pups. The mother will float on her back in water carrying her pup on her belly and spend a great deal of time grooming/cleaning the pup. Baby otter pups often open their eyes after they're about a month old. All freshwater pups stay with their mother for about a year, until the next liter is born. By about four months of age the pups are able to swim and dive well enough to catch their own food and live on their own. Growth rate in otters differ depending on the species. Otters live up to 10-15

Long before the settlers started to make the United States their home, “American Indians lived long beside the Gray Wolf before settlers started to come here.” (Rowe, Mark) The wolf is native to the North American continent and has been inhabiting its land for centuries. It is a canid species, or member of the canine family and is a cunning, smart, fast, and sly animal. Gray wolves range in color from black, brown, gray, and white and also look like a grown German Shepherd. They are well known for traveling in family sizes from 7-9 wolves, led by the alpha male and have a mate. They are a fierce animal that has been researched extensively because of their unique qualities and that they are near extinction.

The grey wolf has been transformed into what we, today, call a dog. After years of traveling with humans, the wolf began to change and became adapted and tame enough to socialize with humans. The environment it was placed into was one of the causes for change, and another was the role it played for humans.

Researchers acknowledge Galapagos hawks actually have a cooperative breeding system, with the dominant breeding male and one or more nonbreeding helpers. DNA is to figure out that Galapagos Hawk males within social groups tended to be related and whether multiple paternity occurred within groups both within and between two consecutive breeding seasons.Checking the productive success was randomly distributed among male groups. Competition expected on basis of chances or whether the process in sperm competition or behavioral might have paternity in favor of some males. This experiment is going to be handled by extracting DNA and later check the Galapagos Hawk hybridization, meaning the process of an animal breeding with an individual of another species. Finally autoradiographs, that shows a photograph produced by radiation from radioactive material in the object and revealing the distribution in the Hawk.

Have you ever played outside with your dog for a while and lay back to consider about how your dog evolved into whom he is today and how he turned into "family?" Well, over the centuries, dogs have evolved a lot! In between that time, they turned into what we call pets. Because of this, the relationship between dogs and humans has changed over thousands of years, wolves evolved to dogs and the wolves soon became pets.

The wolves' habit of hunting in packs has resulted in the development of complex patterns of social behavior. Wolves are gregarious: they not only hunt in packs or groups but live most of their lives with other wolves. Studies in Alaska, Minnesota, Michigan , and parts of Canada show that a family made up of male, female, and pups is the basic pack unit. Other adults are pups of previous years or, more rarely, adults from other packs. Adolescent