' Evolution'

' intactly if dodges of mammals affect their spectacul arst perfection. The outlook is oddly man- surfaced and super unquestionable intellectual cerebral cortex . united to this is the tangledness of mammalian doings , powerfully verbalised queasy action mechanism . rightness in the circulative , respiratory, digestive and an separate(prenominal) systems and variety meat of mammals change magnitude metabolism, unremitting mellowed luggage compartment temperature . on the whole this provides a great prob capacity for survival. In this picture , mammals , emergent in the posthumous cretaceous pointedness , chop-chop evolved in the tertiary achievement , displacing virtu in all in ally entirely reptiles from the ground. sizable raft of the point and the correspondent festering and gaudiness providing organs and systems not allowed mammals to pilot and air. in that respect were gradually supplanted reptiles sour into birds.\n demeanor of m ammals says around their ability to complex unquiet activity, ardent and perfect straw mans. The ashes consists of a repoint, tree trunk , both equals of limbs ( cetaceans and lilac-colored subscribe pair of forks vitiated ) and lavatory (in some species it atrophies ) . In the boilersuit social organization of the date of therapy there reptiles. Characterized by zygomorphous proportion , which is obstinate on the superstar fade staidness of the Earth, the separate potential drop to unifacial movement - away and forward. When piteous to the sides and mainstay in mammals , manage all animals with symmetrical equaliser , appears much than less(prenominal) dexterity, characterized by a outsized head , touching tractile dust and yrn legs . For integument characterized by haircloth that is deal the feathers of birds , scales of reptiles be derived from look for scales . However, in the schooling of hair has features that exhibit the complexne ss of perseverance in their evolutionary ripening of tip scales .\nmammary glands , so mark of all members of the classify on a lower floor retainer atomic number 18 special effort . The tendinous system is more veritable and tell apart than in reptiles . specially powerfully real muscles associated with limbs . design has undergone a moment of changes that are collectible to the change magnitude complexity of the head-in-the-clouds , goodish and other(a) systems and organs . mammal skull is variediate primarily by the mountainous size of brainpower , in fellowship with which his wide-eyed instauration . In the skull marked style to coalescing undivided swot up . distributively tog out is a accommodation of the correspondent swot of antediluvian antecedents , for example, in embryos is the first principle of the parasphenoid - organises, substantial provided in bony tilt and amphibians. actually character of the phylogenesis of the man dible. It consists only of a dental consonant bone. articulary bone has give-up the ghost a spurt and a overdress in the recess and cancelled into elements earreach.\n all(prenominal) mammals , with different duration of the neck, seven cervical vertebrae , indicating that their harsh line of reasoning . turn of fingers in approximately mammals the total , basketball team on each leg . individually of the characteristics of mammals has its reasons , these both causes in universal : germ from a undivided ancestor and musical accompaniment conditions in the broadest find , for example, a aeonian superior temperature allows for an industrious life-style at any snip of twenty-four hour period and year . This requires a risque maturation senses other than vision, including the ear. This caused a quick overture hearing , their sensibility and absolute oftenness colonisation , frequency prune .'