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Wednesday, October 28, 2009

 

Amphibians Life:

 

Amphibians are one of the types of chordates and the word amphibian means both sides of life. This is because the amphibian begins its life in the water (breathing with gills) and then finishes it mainly on land (breathing with lungs).

Amphibians are cold-blooded vertebrates that expend part of their life on dry land and part in fresh water. This means with the purpose of their body temperature vary with the surrounding air or water temperature and do not remain constant as in warm-blooded animals.

The skin of amphibian is thin and moist, and many get some of their oxygen all the way through their skins. It has a brain, nervous system and two eyes, with a third extra protective eyelid for while it is on land.

Amphibians are of three major divisions, they are Caecilians, Salamanders & Newts, and Frog & Toads. Caecilians are burrow in-group and long bodies shape like worm, many of these types do not have eyes. Salamanders & Newts are having tails. Frog & Toads do not have tail.

Male amphibians try to claim a female amphibian. Those kinds of male who get successful will fertilize up to 4000 eggs as the female lays the eggs, which are in a jellylike layer. Immediately male amphibian come and fertilizes it. Black & white eggs are lays by frog and the young frog called tadpole those are hang on plants. Amphibians lay eggs in water and the young amphibians resemble like small fish.

Adult amphibian spends most of the time out of water living in and the damp moisture area. The food habits of amphibian are slugs, small invertebrates and worm.

Amphibians are no longer present in some areas they were in recent times abundant, including relatively pristine, without interruption habitats. This is taking place in numerous areas of the world. At the same time, amphibian populations are stable and on the increase in other regions. Research is under way to find out why some populations are declining and others are not.

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Monday, October 26, 2009

 

Mammals and their small one:

 

In earth Mammals are one of the major parts. In mammals have hair, warm-blooded, and nourish their young with milk. An imperative characteristic of mammal growth, and a key attribute of mammals, is the capability to nurse the young. The female mammals can find nipple to nourish their young once. Nursing milk is important.

The mammals are of three types they are monotremes, marsupials and placental. These are differ by giving birth to there baby.

Monotremes are a kind of mammals gives birth by laying eggs. The second kinds of mammals are marsupial mammals birth is an extreme immature state, the mother having pouches to carry their babies. The placental are a kind of mammals their baby born at advanced stage, which means before birth the young got nourished through placenta.

Every mammal’s life starts with mating. The mother gives birth to young are of different ranges according to the kind of species. Many type of mammals resolve leave their children safely hidden while they are not in foraging for food nearby.

Female mammal sometimes won’t come to look for her baby until her milk glands feel full. For day-time species such as squirrels, you may have to bring the baby inside for the night and try again the next day. For night-time species will have to bring the baby inside during the day.

Some mammals teach their young to pursue, and feed to prepare them for the world. Mammals are naturally more helpless while they are born, so they depend on their mother for endurance.

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Friday, October 23, 2009

 

Mating:

 

Mating systems correspond to reproductive adaptations to ecological conditions. It is behaviors used by animals to meet compatible mates for sexual reproduction.

Animals use a multiplicity of methods to mate, fusion of sperm and egg, or all of which promote fertilization. Copulation means unions of the sex organs of two sexually reproduce animals for insemination and successive internal fertilization. The two those may be of opposite sexes or hermaphroditic.

Much other kind of animal species reproduces sexually with exterior fertilization, including many basal vertebrates. Some vertebrates imitate with internal fertilization through cloacal copulation, while mammals copulate vaginally.

The ecological behaviors have identified as three divisions of monogamy. They are sexual monogamy in which animals mate with only one partner, habitually for only one mating season and the social monogamy in which a pair mates and raise offspring but either partner might also copulate with others and genetic monogamy in which a female progeny are sired by only one father.

Polygamy is a mating system in which a single creature of one gender has mating contact to several individuals of the opposite gender.

Conceivably the most remarkable fact about animal mating is the size of the sex parts. The verification for the largest testes in the animal kingdom is the northern right whale.

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Wednesday, October 14, 2009

 

Badger:

 

Badger is the general name for any animal of three subfamilies, which belong to the family Mustelida.

Badgers are short-legged, heavy-set and the lower jaw is articulate to the upper, by means of a transverse condoyle firmly locked into a long cavity of the cranium, so that displacement of the jaw is all but impossible. These enable the badger to preserve its hold with the utmost tenacity.

It is closely related to otters, stoats, weasels, polecats and pine martens. A badger's home is called a sett. It is an underground home, often with a labyrinth of tunnels concerning the excavation of tons of earth.

The sense of smell is the most important of the badger’s senses and forage for food with their snouts constantly sniffing the ground ahead of them. Badgers are omnivorous and will eat a wide multiplicity of foods, even though their main diet consists of earthworms, up to 200 per day.

Badgers are less energetic during winter months but they do not hibernate. The mating progression involves delayed implantation although females are able to mate any time after the cubs are born, fertilized egg does not implant in the uterus until December.

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Thursday, October 8, 2009

 

ZEBRA:

 

Herbivorous hoofed African mammal of the type Equus, which also includ the horse and the ass. Very friendly animal in the largest part of the cases, and they are frequently found in large herds or small harems. It is famous by its striking pattern of black or dark brown stripes sporadic with white.

Equus zebra inhabits the rocky regions of the Cape Colony, owing to the advance of civilized Man into its constrained range it has develop into very imperfect, and exists in the appearance of a confined race in Angola .

A huge amount of local races, range starting the plains north of the Orange River to northeast Africa, correspond to the second species, Burch ell’s zebra. Equus zebra is the slighter of the two and has longer ears, a tail added inadequately wearing clothes with hair, and a shorter mane.

Zebras are the second heredity to depart from the earliest proto-horses, after the asses, around 4 million years ago. When chase, a zebra will zigzag on or after side-to-side creation it more difficult for the predator. When corner the zebra determination rear up and kick or bite its attacker.

Zebras are flexible grazers. They feed chiefly on grass but will also eat shrubs, herbs, twigs, leaves, and bark. Their well-adapted digestive system allows them to survive on diets of junior dietary superiority than compulsory for herbivores.

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Monday, October 5, 2009

 

Ocean life

 

The oceans life contains 99 percent of the living space on the planet. The life in ocean is classified into three types.

The first type is plankton. Plankton Creatures drift, rely and float to move from one area to other and they are either microscopic or zooplankton.

The Nekton is the second type animal that can able to swim without help of tides. It has streamlined bodies to help them swim more efficiently and it can able to swim vast distances very speedy. The blue whale, Balaenoptera muscular, is the largest known animal ever to have lived on sea or land. Life begins in the seas 3.1 billion to 3.4 billion years ago. Land dweller appear 400 million years ago a relatively recent point in the geologic time line.

The architecture and chemistry of coral are very close to human being bone, coral has used to replace bone grafts in serving human bones to heal rapidly and cleanly. Alginates, derivative from the cell walls of brown algae used in beer, adhesives, boiler compounds, ceramics, explosives, paper and toys.

Benthos is the third type of organisms that live on, in, or near the seabed, also known as the benthic zone. They live in or near marine sedimentary environments and the main food; sources for benthos are plankton and organic runoff from land.

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Thursday, October 1, 2009

 

Wildlife Conservation

 

Wildlife preservation has gain huge consequence in current scenario of wildlife extermination. Many communities of forest dweller and fisher people follow traditional practice of maintain closed seasons, when no hunting or fishing is permissible, so that the natural wildlife populace can get back its number. Habitually hunting booty was also collective within a group of people.

Many species have been preserved from beginning to end the centuries because of religion and social customs. These comprise animals similar to the king cobra and langur monkey.

Some forest were confined for the sake of mud conservation and maintaining the climate but equally in feudal and colonial period, the local community were held in reserve out of the wild area, and they could not comprehend why the area that they had full care of centuries should be set away from each other to benefit others.

Wildlife management societies preserve is local, regional, national or global and can be private or government and almost every nation across the world has its share of environmental activism. Human control over the Earth’s ecosystem has been so extensive contained by the last 10,000 years that scientists have complexity estimate the total amount of species lost in this era and of deforestation, reef destruction, wetlands filling and other human acts are taking place much more rapidly than human assessment of the earth species.

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