Animals world

Animals world

วันอังคารที่ 22 กุมภาพันธ์ พ.ศ. 2554

wild animals



        Wildlife includes all non-domesticated plants, animals and other organisms. Domesticating wild plant and animal species for human benefit has occurred many times all over the planet, and has a major impact on the environment, both positive and negative. Wildlife can be found in all ecosystems. Deserts, rain forests, plains, and other areas including the most developed urban sites, all have distinct forms of wildlife. While the term in popular culture usually refers to animals that are untouched by human factors, most scientists agree that wildlife around the world is impacted by human activities.


 
          Humans have historically tended to separate civilization from wildlife in a number of ways including the legal, social, and moral sense.


           This has been a reason for debate throughout recorded history. Religions have often declared certain animals to be sacred, and in modern times concern for the natural environment has provoked activists to protest the exploitation of wildlife for human benefit or entertainment. Literature has also made use of the traditional human separation from wildlife.

วันอาทิตย์ที่ 13 กุมภาพันธ์ พ.ศ. 2554


INSECTS





                     In sect are the largest group of  arthropods. In our world have about 800,000 type of insect.
Insect are living everywhere in the world.



             Insects are very adaptable, living almost everywhere in the world. Common insects include the fly, beetle, butterfly, moth, dragonfly, bee, wasp and praying mantis.

       Insects have an exoskeleton that covers their entire body. An insect's body consists of 3 parts: the head, thorax and abdomen.
    The insect's head has a pair of antennae, and a pair of compound eyes.
    Compound eyes are different from human eyes which have a single lens for each eye.

      Compound eyes have many lenses for each eye

 

             For example for the compound eyes, the fly has about 4,000 lenses in a single eye. This provides them with very good eyesight.


             The thorax contains the legs for walking, swimming, jumping or digging. The thorax may also have wings for flying.





              The abdomen contains many body organs, such as the heart, respiratory system, digestive system and reproductive system.
      The insect's hard, exoskeleton makes it difficult for the insect to grow and get larger.
       This is because the exoskeleton can't grow and get larger. Many insects must molt in order to grow.



              Many insects must molt in order to grow. Molting is the process where an insect sheds it outer skeleton. It wriggles out of this old skin, and a new, larger exoskeleton develops.





วันอาทิตย์ที่ 6 กุมภาพันธ์ พ.ศ. 2554

                                          AMAZING  FISH

 

                                         Fish  have 31,900 species,fish exhibit greater species diversity than any other class of vertebrates.
Fish have had a role in culture through the ages.




              A fish is any aquatic vertebrate animal that is covered with scales
There  are many type of fishs.  There  are many type of fishs .  Most  of  fish  are  cold- blood , they  alive in water .Food prepared from animals classified as fish is also referred to as fish, and is an important human food source.