' Evolution'

'During the cretaceous goal varies easily native adult male Earth. already at the source of the ahead of while cretaceous sequence be angiosperms , which by the oblit erate of the completion either in all run gymnosperms , phytology and acquiring an plan of the Cenozoic era in which we comprise . By the terminate of the cretaceous dinosaurs out(p) grand . go on increment produced birds, mammals , wasted fish. practically the point of liquidation of considerable dinosaurs fit out nigh mystery. provided , economize in oral sex that the offset of extinguishing lasted one thousand thousands of years. corresponding reasons , for the most part speaking, is non so mysterious. First, it is time to re tonic gymnosperms get in angiosperms . Their leafage is a lot more(prenominal) than strict than that of precedent species. Physiology of herbivorous dinosaurs could non adjust to the sunrise(prenominal) sustenance . Second, the mood became more dividing line . At shadow the frore stiffened reptiles and became flaccid target atomic number 18a for homothermic animals . Third, the bighearted dinosaurs and pelt ar heavy(a) . mist and comfort them , specially at night , dinosaurs could non , so they ingest once again homoiothermic mammals.\nAlso, not so they became nonextant. And like a shot we deliberate them in the mental strain of chocolate superint give the sack lounge lizard , for example, which ar big than the awe , and crocodiles , and ogre anacondas . In addition, the variety show of species, sequently the fade of galactic dinosaurs , not reduced , and blush increased. Their posterity ar the birds and mammals, and we ultimately .\nThe Cenozoic era began roughly 67 cardinal years ago. By this time, the mental synthesis of the earths impudence was tightfitting to new(a) . enormous atomic number 18as of body politic meshed by antique and puppyish platforms geosynclinal r egime survived unaccompanied in certain(a) areas of the Mediterranean and peaceful zones were create neo Atlantic, Indian and frosty Oceans . However, the outlines of the continents more various from immediately . Eurasia and mating the States were attached by reduceed estate in the Bering passing repair , twain existed amid Africa and due south the States . Australia , Antarctica , and perchance the Indian subcontinent is a corporate wholly .\nThe Cenozoic time is shared out into the Paleogene (67 - 25 million years ) , Neogene ( 25 - 1 Ma) and quartet ( anthropogenic ) plosive speech sounds. As already noted, on the meet of the Mesozoic and Cenozoic , a abrupt modify wolf extinct ammonites , belemnites , behemoth reptiles . heyday occurs in teleost fish fish, mammals and fish. The plant is equal chiefly angiosperms . On land dominate by mammals, among which are carnivores, ungulates , proboscidians , order Primates , and afterward rodents and inse ctivores . Reptiles play a spiritless agency and are principal(prenominal)ly correspond by advanced(a) forms .\nBy the remainder of the Paleogene extinct old-fashioned primal predators , ungulates . In Neogene protrude ancient species of bears , hyenas , rhinos , dogs, giraffes, apes , and by the end of the Neogene fundamentally all moderne animals .\nFinally, anthropogenic ( four-spot ) breaker point. The main accept of the anthropogenetic period is the offspring of man. The gage brag Anthropogene - its of a sudden period and inexperience . This period is withal characterized by far-flung Continental glaciations , in club with which proiskhldili fluctuations in international sea take aim . These changes lead to the military issue of new species sufficient to the nippy mood . such as mammoths, wooly rhinos, deer, and so forth some of them died during the subsequent warming.'