معلومات عن الضفادع بالانجليزي

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

ذكر اضرار  معلومات طائر انواع  تربية قصة صفات

معلومات عن الضفدع بالانجليزي كلمة ضفدع

frog life cycle علجوم حقيقي

Xenopus صفات الضفدع

Frog Anurans are amphibians without tail

The anurans (Anura) is an order of amphibians easy to recognize, because it includes individuals without tail, such as frogs (Ranidae) and toads (Bufonidae). They are amphibians that can be found everywhere on the globe, except in Antarctica where frogs are not present.

There are more than 4800 species of different anurans, which form the vast majority of amphibians to more than 85%. They are robust animals with bulging eyes. They have green, brown and dark colors to help them camouflage, but some species have bright colors to demonstrate their toxicity. They measure from 7 mm to 30 cm depending on the species.

They are cold-blooded animals, usually in an environment where a watercourse or pond is nearby, as most breed and lay in the water. Some exceptions, such as the Strawberry Frog, will use a small temporary tank to lay their eggs.

Frogs are more aquatic and live where fresh water is present, except in very cold regions, or in Australia. They have smooth skin, are alert, thin and fast. Toads are more terrestrial and frequent forests and other places where moisture is acceptable, they have warty skin, are stocky, and slow.

In general, they are animals that spend a lot of their time on land in wetlands. They take advantage of the streams as needed, and some must go there for mating and lay their eggs. The eggs then give a tadpole, which is the aquatic larva, round in shape, and moves with the help of a tail. He will then develop limbs, the tail will disappear, and he will metamorphose into an adult. Others do not have a larval form and can lay directly on the ground.

The environment, the predators, the food ... are factors that determine the kind of amphibian that can live there. That's why we only find 21 species of frogs in North America where there is a period of frost. The majority are carnivores, but some species are omnivores and some eat fruits.

The majority of anurans are safe for humans, but some species in Central and South America secrete highly toxic substances that cover their skin. Some tribes of natives use it on the arrowheads to instantly kill their prey.

Photo of a batrachian animal

As they are cold-blooded animals, and the temperature that goes down will slow down its metabolism to make it fall into a lethargic state, then hibernation. In areas where winter is very cold, they hide under a rock, stump or other to winter and come out when the temperature rises and its metabolism can resume its normal activity.

They are animals whose hind legs are much longer and stronger than the front ones, which allows them to make jumps to move quickly. Many have webbed feet, to allow them to swim easily and quickly. The tongue is usually retractile and sticky to allow it to catch insects and other prey that are within reach. Some have fingers that allow them to cling to leaves, such as tree frogs.

Photo of a wood frog

The mode of reproduction, spawning, life span, and physical characteristics of the anurans vary according to the species.

Name of the anoure Scientific name / Family

American Toad Anaxyrus americanus

Green toad Bufo viridis

toads Bufonidae

Green frog Rana clamitans

Wood Frog Rana sylvatica

Strawberry frog Oophaga pumilio

Rana pipiens leopard frog

Bull frog Rana catesbeiana

Tree frogs Hylidae