Otters Research Paper

Manly Sea Eagles secured their place in the 2015 VB NSW Cup finals campaign by completely blowing the Wentworthville Magpies away 58-16.

The study conducted by Weisle, Nagaswami, and Peterson is displayed about river otters and how they are different in structure from other marine mammals. River otters must depend on their thick layer of hair for survival. River otters are semi-aquatic mammals, which are considered to have denser fur than any other mammals. It’s thick, sleek coat, which keeps it dry and warm, is made up of two types of hair. The longer outer hairs are water repellent as known as guard hairs, and the other is underhair. The guard hairs could provide some protection for the more delicate underhairs. The three authors of this article, “River otter hair structure facilitates interlocking to impede penetration of water and allow,” addresses a question upon why the

Many people consider hunting dangerous. This is not necessarily correct. Before any person is legally allowed to hunt in most states, they must undergo a required

Shark mating rituals vary from the size of the shark and its specie. In smaller, more flexible species, the male coils around the female, while the male of the larger specie orients himself parallel and head-to-head with the female (Woums & Demski 1993). Some species mating rituals also consists of males biting females on the pectoral fins or the middle of the back to hold on to them (Woums & Demski 1993). The female will often bear scars or marks, after the ordeal. Due to the fact that sharks are cold blooded animals, there is no precise gestation time. The development of the embryo will depend solely on the temperature of the water, however, the gestation period can last anywhere from 2 months to 2 years (Woums & Demski 1993). Within shark species there are two methods of reproduction. In some cases a female shark will lay eggs in a coastal nursery where the presence of other sharks are absent. And in other cases, usually in the larger sharks, females give birth to live offspring (Wourms & Demski 1993). In which case the young are born fully developed, and once they are born they shoot away fast or they risk being eaten.

The North American River Otter’s color can vary from light brown to almost black, and they have wide, rounded heads, small ears and nostrils that can be closed underwater. The females are usually around 3.2 feet long, are 11-30 pounds, and their tail is almost ⅓ of their total length! The males are bigger than the females at 3.7 feet long, 12-32 pounds, and their tail is also ⅓ of their total length. They also have webbed feet to help them go faster in the water, and waterproof, velvety fur that keeps them

The presence or absence of sea otters influences marine ecology at the community-level. Studies have shown that kelp forests enhance the underwater environment, providing a suitable habitat for fishes. The declining kelp beds in California in the mid 1900’s propelled the Kelp Habitat Improvement Project, whereby attempts were made to eliminate sea urchins that are primary predators of kelps. Studies showed that the elimination of sea otters during the 1800s from the Californian waters might be responsible for the dwindling numbers of kelp forests. Further studies have also shown that the population density of sea otters affects seaweed biodiversity as well. In a study conducted in Alaska on three different bays, the Torch Bay, Deer Harbor and the Surge Bay, it was found that the presence of sea otters led to a decrease in the population of sea urchins, which led to an increase in the population of seaweeds. In addition, it was also found that annual kelps predominated the areas where sea otters were present, and perennial kelps predominated in areas that had lesser sea otter populations (qtd. in “Interaction with kelps & sea otters”).

The reading suggests that two possible causes: the environmental pollution and predators attacks. However, the lecture defends that is more probabily is the predators attacks.

They look like seals yet more brownish color and have fur. Their bodies allow them to glide very fast in water. Due to them not being adapted more to aquatic environments. They have some disadvantages on land. For example they don,t have a good range of sight on land but that's because of the good range of sight they have in water. River otters are active year round so they don,t hibernate. They don't migrate but the only time the'll move is mostly caused by food sources are very low. They are carnivorous and eat a verity of fish and amphibians but rarely prey on

5. There were about 50 southern sea otters but now there are about 2000 otters.

As referred to in “Zoologists and Wildlife biologists Ocupational” the median salary for a wildlife biologist is about $59,680 per year which is $28.69 hourly. The lowest ten percent earned less than $39,180, and the highest ten percent earned more than $97,390. According to “Salary:Wildlife Biologist” the average annual pay for the Johnstown area is about $42,061. Depending on where you work you will get paid a different amount. Overall Pennsylvania has an annual salary of $60,000 and and hourly pay of $28.85. West Virginia has an annual salary of $47,300 and $22.74 hourly. Connecticut has an annual salary of $91,240 and a hourly pay of $43.87("Zoologists And Wildlife Biologists :: Salaries"). You don't immediately get paid that amount of money. Depending on how long you have

Their bellies are strong too – sea otters dive down to the bottom of the sea to catch crabs, lobsters, and even fish – then, they put their food on their belly, and open the hard shell by pounding a rock against it!

Out of all the animals out there in the world, my power animal would be the Otter. I pride myself in being playful, and sociable. I have such a positive energy that it makes you appreciate all the good things, and make a positive situation even on the bad. For the otter, life is a playground. When life starts to get too serious, the otter can teach you a thing or two about keeping your inner child happy and having fun whenever you can.

Most sea otters eat up to a quarter of their weight every day. Sea otters also may hunt on the sea floor, but always come back to the top to eat its food on its chest, and use it as a table. A sea otters diet consists of crabs, clams, crayfish, and frogs. Most otters hunt by detecting movements in the water. Their life spans only last about 15-20 years for females and 10-15 for males. Male otters weigh up to 44-99 pounds and females weigh about 31-73 pounds. Female otters normally have their first pup when they are about the age of four to five. Their pregnancies last for about 4-5 months. Their babies are called pups. The pups are born anytime of the year, except the California sea otters are born normally through January and March. When the pups are born they weigh about five pounds. In Alaska they are born in the summer and not the winter.

Did you know that the endangerment or eventual extinction of a species affects other animal extinction and eventually affects human well-being? One such species is the sea otter. The sea otter has an important role in the ecological preservation of pacific kelp forests.

Otters will accept lower pay since we are afraid of confrontations. I agree with this statement since sometimes confrontations can go the wrong way. For relationships, otters tend to have high expectations for any relationships. I feel like having high expectations is healthy due to the fact the its your life and you should control it. Otters love to eat out and I love to eat in general.