an organism becomes better suited to its habitat This process takes place over many generations.[3] It is one of the basic phenomena of biology.When people speak about adaptation, they often mean a feature which helps an animal or plant survive. An example is the adaptation of horses' teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses' teeth continue to grow during life. Horses also have adapted to run fast, which helps them to escape their predators, such as lions. These features are the product of the process of adaptation.
Camouflage is another adaptation; so is mimicry.
The better adapted animals are the most likely to survive, and to reproduce successfully. This process is known as natural selection; it is the basic cause of evolutionary change.
Camels in 2003.
Camels live in deserts, lands that are hot and dry. Camels have adaptations that help them live in deserts. A camel has a thick coat of hair that protects it from the sun. A camel has wide, soft feet, so it can walk a long time in the hot sand.
Several adaptations help a camel save water. When there is food and water, a camel can eat and drink large amounts and store it as fat in the hump. Then, when there is no food or water, the camel uses the fat for energy, and the hump becomes small and soft. A camel’s waste contains very little water. Even the water from the camel’s breath flows back into its mouth.
A camel has a naturally adapted thermostat - it can change its bodily temperature by 6 degrees centigrade either way. It has 2 sets of eyelashes, closing muscles in the nasal passages with slited nostrils, hairy ears and tough, leathery skin to protect the camels skin in vital emergencies i.e a sandstorm. It has thick rubbery lips to eat dry, prickly plants and a large, haired tail to swat pests such as mosquitos and flies.
It has a long slender neck in order to reach high leaves i.e palm trees and rubbery patches on the belly and knees to protect the skin when kneeling and sitting on the scorching sand. These form after 5 years of age.
Life
Reproduction</SPAN>
There is typically one young per birth. When they are born, they can start running in only a few hours. The gestation period lasts about 12 to 13 months, and weaning ends at about 1-2 years of age.
Diet</SPAN>
In the desert, people feed camels with grass, grains, wheat and oats. When they are travelling (in the desert), food is often very hard to find. So the animal might have to live on dried leaves, seeds, and thorny twigs (without hurting their mouths). If there is not any food, camels will eat anything: bones, fish, meat, leather, even their owner's tent.
Camels are ruminants But its stomach has three sections instead of four. Camels do not chew their food very well before swallowing. The first stomach stores the food that is not chewed very well. Later, the food or cud returns to the camel's mouth, and the camel chews it. Afterwards, the chewed food is swallowed and goes to the other parts of the stomach to be completely digested.
Camels and Humans</SPAN>
A camel trainin Africa.
Camels have been domesticated by humans for about 5000 years. They are used for riding and to carry things, and for meat, milk and wool.
As domesticated animals they are used in Africa, Asia, and since the 19th century also in Australia. About 900-1000 wild Bactrian Camels still live in China and Mongolia. There are no wild Dromedaries anymore, but there are escaped domestic Dromedaries in Australia. Today there are about 50,000 Dromedaries living wild in the Outback in Australia.
A Dromedary and a Bactrian Camel can have hybrid children that are called Tulus or Bukhts. These hybrids are larger than the Dromedary or Bactrian Camel, and have either one long hump or one small and one big hump.
When a camel calf reaches one year of age, the owner often teaches it to stand and kneel on command. They also learn to carry small, light packs around. As they grow older, the size of the pack also increases
و اسمحيلي ع القصور
انا جمعت لج كم من معلومه
واللي عليج انج ترتبين المقدمة و الموضوع و الخاتمة الأفكار و كيت و كيت وكيت
