معلومات قصير موضوع انجليزي بحث تقرير بالانجليزي باللغة
الانجليزية انشاء
موضوع عن الحيوانات الاليفة وانواعها
اين تعيش ماذا ياكل مدة حياتها اسماء صغارها
تعبير عن الجمل بالانجليزي تعبير كتابي عن وصف حيوان اليف
عبارات قصيره للاطفال
information about
paragraph معنى برزنتيشن معلومات بسيطه
اسم نطق كلمة معنى كلمة برجراف حيوان
مفترس لاحم عاشب اليف متوحش وحيش الغابة موسوعة عالم الحيوانات برمائي كل شيئ عن تزاوج
انواع الانجليزي الشائعة معنى كلمة بالانجليزي
اختصارات
معلومات عن الحيوانات بالانجليزي موضوع عن الحيوانات الاليفة
بالانجليزي دورة حياتها
تغذية الحيوانات والحشرات على ماذا تتغذى كيف تتغذى الموسوعة
تتذوق الطعام تصنيف
فوائد الجنس للصف الرابع للصف السابع الاول الثاني الثالث
الخامس السادس الثامن التاسع كتابة ذكر اضرار معلومات طائر انواع تربية قصة صفات حديقة الحيوانات اسباب
حيوانات المزرعة لرياض الأطفال براعم لائحة اسماء الحيوانات
العاشبة اللاحمة حيوانات تاكل النباتات مختلطة التغذية تتغذى الغريزة الحيوانية الكائنات
المخلوقات
Migrations are necessary for
some animals
Migration is the movement of
certain animals at a time of year, or their life, that makes them move to
another, often remote, place. This, to proceed with mating, run away from the
cold, or other stage of their animal life.
The animals seem to undergo
chemical influences that push them to migrate. Some things trigger the need for
migration, such as the length of the day's duration, the need for more food for
their diet, or the need for more specific foods for their development. There is
also the change of the temperature, the seasons, the need to go mate to a
certain more favorable place ...
Migratory animals are surely a
good example of how animals know where they go when they migrate. It is often a
long journey that requires a huge amount of energy, but is necessary for the
animals that have to do it. Often, migratory animals get ready by eating a lot
to accumulate fats that they will need to have enough energy for the trip.
Migration also allows natural
selection to do its job. During the trip, many will be captured by predators,
and weak animals will often not reach their destination. The strongest will
finish the migration journey and mate to have a stronger offspring, and thus
improve the offspring of the species.
It's not just birds that are
migratory animals, insects, mammals, fish ... there's simply more flight of
birds, like the Canada goose, leaving the area for the winter. Some butterflies
leave Canada to go to Mexico. Even some bats leave the north to go south in winter.
Fish, such as trout, salmon
... migrate from the ocean to freshwater streams, such as lakes and rivers, to
go spawning, and thus reproduce and lay eggs . Then, as an adult, the fish will
live in the ocean, eventually migrating back to where it was born and breeding.
Photo of Canada's snow geese
migration
Migration is therefore a way
for animals to reproduce in a less hostile environment and where food is more
abundant. They take advantage of the favorable conditions of other regions,
even far away, for security or food. Migration is therefore important for
migrating animal species to survive and perpetuate their breed.
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