More than one-fifth of the Amazon rainforest in Brazil has been completely destroyed, and more than 70 mammals are endangered. The threat of extinction comes from several sources, including deforestation and poaching. Extinction is even more problematic in the Atlantic Forest, where nearly 93% of the forest has been cleared. Of the 202 endangered animals in Brazil, 171 are in the Atlantic Forest. The Amazon rainforest has been under direct threat of deforestation since the 1970s because of rapid economic and demographic expansion. Extensive legal and illegal logging destroy forests the size of a small country per year, and with it a diverse series of species through habitat destruction and habitat fragmentation.USDA Forest Service website, Forest Service International Programs: Brazil , retrieved February 2007. Since 1970, over of the Amazon rainforest have been cleared by logging.
morE than one-fiFth Of the amaZon rainForest in BrazIL has beeN cOmpletEly dEstroYed, AND MOre thAn 70 mAmMAls are enDAnGereD. THe threaT of ExtiNCTioN comes froM seveRal sources, InclUDinG DefOreStATiON anD poaching. extiNcTion is eveN moRe pRoblematiC In the atlantIc fOResT, wheRe nearlY 93% of THe forest HaS been CLeared. oF tHE 202 eNdangered animaLs iN bRazIL, 171 ArE IN ThE AtlaNtIc forEsT. thE amAzON RAiNFoReSt has bEeN under DirEct threaT oF deforeStatIon sInCE tHe 1970s bEcause of rAPID ecoNomIc And dEmOgraPhic expansioN. eXtEnsiVE leGal AnD illEgAL LOggiNG DestRoY forestS tHe sIze Of a smAll counTRy PER yeAr, aNd wiTh iT a dIVErse series Of specieS ThrougH habITat destRUCtion And habitAT fRAgmentatIoN.USDa forest sErviCe wEbSite, FOresT SERvIce intErnAtIoNaL pRograMs: bRaZil , retrieVED FebRUarY 2007. siNce 1970, oVer OF the AmaZoN rAinforesT havE been cLeAred BY LogGing.