Although many of us are familiar with the politics of the modern Middle East, I'm guessing most of us are not nearly as versed in its history. Today we'll try to rectify this a bit as we discuss the Abbasid Empire and their rulers, known as caliphs. To begin, the Abbasids ruled the Arab world from about 750 CE to 1258 CE. They took power after conquering the former empire of the Umayyads.
Mammals are a particular class of animal. What makes an animal a mammal are several things. First, they must have glands that give milk. This is to feed their babies. Second, they are warm-blooded. Third, all mammals have fur or hair. Humans are mammals and so are dogs, whales, elephants, and horses.
These special characteristics make a mammal a mammal. 1  The animal is warm-blooded or endothermic â able to keep a constant body temperature no matter what the temperature of the environment. 2  The animal has mammary glands, which produces milk to nurse the young.