Monotremes Research Paper

They exhibit a polygynous mating system, which means they have one-male and multi-female groups. The male’s large home ranges envelop the home ranges of several females. The males will mate with all the females in their home range and even some in extending home ranges. Females will also mate with members of different home ranges. The two remain together for several days while mating and will copulate several times in that period. Litters are usually fathered by one male, and the males will defend and mark their territory while mating. Females will mate every other year from May to August. They will stay in heat from June to August, and most mating will occur in June or July. Most interestingly females display a delayed implantation where the embryo is not implanted immediately at copulation but actually waits in diapause for about six months. Fertilized eggs develop to the blastocyst and will remain there until implantation to the uterine wall which typically occurs in the months from December to February. This means pregnancy may last anywhere from 120 to 272 days. Which will depend on when the embryo is fertilized and when it is implanted. Parturition is perfectly timed for the optimum survival of their young, which is usually when the most food is available. Females build snow-dens to birth and nurse their young. They typically have two dens, a natal den for giving birth and then when this den is

The mating season is year round and once they’re pregnant the, length of gestation is one hundred thirty days to one hundred ninety days. (The gestation for a human is two times longer.) They only have one offspring at birth. After birth the young latch onto the backs of their mother and stay until a year of age.

During that time the male will go out and seek a female usually in her burrow and that is when the life cycle

The Brown-throated Three-toed Sloth is approximately the size of a house cat, ranging from 45-60cm. Like all sloths it has long limbs and a small head for the size of its body. Sloths’ fur hangs ‘backwards’ compared to other mammals, lying from the stomach to their back. This enables the water to run off while it is in a tree. Sloths do not have visible toes but instead have long claws. In this species they have three claws on each foot, which enable them to hang from the branches of trees (2). The brown-throated Tree-toed Sloth can also be distinguished from other species by its brown fur and upturned mouth, giving the sloth a constant ‘smile’.

Mating occurs before sunrise and mates are found by scents. When the female lays her eggs it forms a stick that contains thirty to fifty eggs. They hatch after about twenty-five days and they eat the cactus pad. After about two moths in the host cactus they exit the cactus and form cocoons. They become a pupa under the debris on the ground. Once they reach the moth stage they search for a

Viviparity (live birth) is a highly uncommon form of reproduction in the insect world, those that do have this type of reproduction fall into two main groups: those who have a high offspring rates and those who have low offspring rates. Viviparity, while uncommon, does serve a distinct purpose. In some cases the insect has very few ovarioles to begin with, in which case, it is essential for the offspring to be given the best chances at survival they can get. Having the embryo safely protected inside the insect while it develops gives the young insect a far better survival rate than those who are deposited in eggs outside the mother. In other cases, such as with Aphids, it allows for a ‘telescoping generations’ effect which greatly increases the numbers of

Infectious Mononucleosis also known as Mono is known to be caused by the Epstein-Barr Virus (EBV). It is contagious. It is usually seen during childhood but can extend to young adulthood ages 15 to 25. Ninety percent of the children who have mono have the EBV

The wrap-around’s appearance is similar to Australian Solophones species. The Dolophones abdomen resembles an inverted

In every great novel there is bound to be a tempest, the best friend, and the grand adventure in which there is bound to be a battle of some sort. The Monomyth and temple pattern has been seen throughout various movies and books around our culture. Dante’s The Divine Comedy is no exception to the pattern. Among the three compilations of Hell, Purgatory, and Paradise we, as a reader travel through the monomyth journey alongside Dante in order to reveal moral truth.

Living the majority of their lives in the canopy of the rainforests in Central and South America, the sloth has been deemed one of the world’s slowest moving mammals. There are five species of sloths; the most common are the Choloepus (two-toed sloths) and the Bradypus (three-toed sloths). Within the Choloepus group, there are a two species, whereas the Bradypus has three. Their main habitat is within rain forests high atop the canopy of trees where they are safe from predators. Recently a new sloth species was found, the Bradypus pygmaeus (three-toed pygmy sloth) on the Isla Escudo de Veraguas in the Caribbean coast of Panama. Sloths reach adulthood within one to three years and become sexually active once they reach their adult size.

The greatest similarity between the echidna and the platypus is their classification as an animal. Their particular categorization is viewed by many people as quite peculiar because platypus and echidnas are the only two animals on the planet that are classified as a monotreme (an egg-laying mammal). Both monotreme animals contain venom and are often times referred to as living fossils because they have been lived on Earth for millions of years without changing (Choi, 2009). Platypus and echidnas share

The platypus is a mammal and it lays eggs and that makes it unique. Thanks for reading I hope you learned

Spiders reproduce by laying eggs. During mating season, a male spider impregnates a female spider by means of a microscopic

The Radiance 0216200 blinder is a deep brown window shade that is made of hand selected bamboo. It is available in 15 widths and comes with a classic Roman design. It is designed to protect your privacy and make your house look more sophisticated and elegant. These blinds are strong, rustic and beautiful. Moreover, they come with a matching 6 inch valance and a handcraft wooden tassels that completes the elegance of this lush shade. It is ideal for indoor use, especially in bedrooms, kitchens and living rooms. Be more creative and combine it with a sisal rug. This way, you will bring the feel of an island retreat in your own home.

Isotonic means that the solution has the same concentration of solutes as human blood. It’s essential for IV fluid to be isotonic to your blood so that it does not disrupt the fluid balance in the patient. It also has to be isotonic for the comfort of the patient and to prevent tissue damage. “Injected I.V., a fluid exerts predictable effects according to its tonicity: Isotonic fluids stay in the vessels (extracellular space), hypertonic fluids pull fluid from the cells (intracellular space), and hypotonic fluids flow into cells.” If the tonicity is not right, it can be painful because the cells may be exposed to too much or too little solute causing cell damage. If the solution is hypertonic, the patient may become dehydrated. If the solution