هي فرع حيوي من الحيوانات السلوية ذا

هي فرع حيوي من الحيوانات السلوية ذات الدم الحار. ومن بين الصفات التي تميزها عن غيرها من الحيوانات السلوية كالزواحف والطيور، هي شعر (تشريح)، ثلاث عظام الأذن الوسطى، الغدد الثديية في الإناث، والقشرة المخية الحديثة (منطقة في الدماغ). ينظم الدماغ في الثدييات درجة حرارة الجسم والدورة الدموية، بما فيها القلب ذو الأربع غرف. وتشمل الثدييات أكبر الحيوانات على كوكب الأرض، مثل الحيتان المزعنفة، وكذلك بعض من الاكثر ذكاء مثل الفيلة وكذلك بعض الرئيسيات والحيتانيات. الميزة الأساسية لأجسامها هي الأربعة قوائم التي تحملها على الأرض، ولكن بعض الثدييات تتكيف مع حياة البحر، في الهواء، في الأشجار، أو على قدمين. أكبر مجموعة من الثدييات، هي الثدييات الحقيقية، التي لديها مشيمة تغذي صغارها خلال فترة الحمل. تتراوح أحجام الثدييات من 30-40 ملليمتر (1-1.5 بوصة) مثل الخفاش الطنان إلى 33-متر (108 قدم) مثل الحوت الأزرق.

النتائج (الإنجليزية) 1:

Is a clade of animals amniotic warm-blooded. Among the qualities that distinguish it from other animals amniotic as reptiles and birds are hœnir, three middle ear bones, mammary glands in females, and the cerebral cortex (the brain's area). Mammalian brain regulates body temperature and circulation, including heart with four rooms. Mammals include the largest animals on the planet, such as finned whales, as well as some of the most intelligent like elephants and primates and cetaceans. The basic advantage of the four lists are objects carried on the ground, but some mammals adapted to life at sea, in the air, in the trees, or on two legs. The largest group of mammals are mammals, which has fed their young placentas during pregnancy. Ranging from sizes of mammals from 30-40 mm (1.5 inches) like bat Hummingbird to the 33-meter (108-foot) blue whale.

النتائج (الإنجليزية) 2:

It is a vital branch of amniotic warm-blooded animals. Among the qualities that distinguish it from other amniotic Kalzuahv animals and birds, are hair (Anatomy), three bones of the middle ear, the mammary glands in females, and the neocortex (the region of the brain). In mammals the brain regulates body temperature and blood circulation, including heart with four rooms. The mammals include the largest animals on the planet, such as finned whales, as well as some of the most intelligent, such as elephants, as well as some of the primates and cetaceans. The key feature of their bodies are the four lists that bear on the ground, but some mammals adapted to life with the sea, in the air, in the trees, or on two legs. The largest group of mammals, is the true mammals, which have their young feed the placenta during pregnancy. Mammals sizes ranging from 30-40 millimeters (1-1.5 inches) such as the bat Buzzer to 33-meters (108 feet), such as the blue whale.

النتائج (الإنجليزية) 3:

Is a vital branch of warm blooded animals, Alslwyt.Among the qualities that distinguish it from other animals Alslwyt Kalzwahf bird, she felt (anatomy), the three bones of the middle ear, the mammary glands in the female. The cerebral and brain region (Modern).The mammalian brain, including body temperature, blood circulation, heart with all rooms.The largest animal on the planet include mammals, such as whales, as well as some Almznft like elephants, as well as some of the most intelligent primates and cetaceans.The main feature of its quadrilateral are lists of objects carried in some mammals adapted to life on earth, but the sea, in the air, in the trees, or to QdmynThe largest group of mammals, is the true mammals, which have the placental nourish their young during pregnancy. Mammals ranging in size from 30-40 mm (inch 1-1.5 like bats, hummingbirds) to 33 m (108 ft), such as the blue whale.