TheLargestDeerlecturer:GuoZhiwenMooseisthelargestdeerintheworld.MooseiscalledmooseinNorthAmericaandelkinEurope.Weighing550kgand2meterstall,itistallerthanmostrhinocerosandisthelargestmemberofthedeerfamily.Itstallbodyisverysimilartoacamel,itsfourlonglegsarealsosimilartoacamel,itsshouldersareparticularlyhigh,anditisalsolikethehumponthebackofacamel,soitgetsitsname.Thehaircolorofthewholebodyisbrown,andthecolorofsummerhairismuchdarkerthanthatofwinter.Mooseisatypicalconiferousforestanimalinsubfrigidzone.Itmostlylivesintheflatandlow-lyingareasandswampsintheforest,neverfarawayfromtheforest,butitalsochangeswiththeseasons.MaleMooseusuallylivealone,whilefemalemooseandfawnsliveingroups.Theyareforaginganddrinkingallday.Therearemorethan70kindsoffood,includinggrass,leaves,twigs,waterlilies,duckweedandotherplants.Theyeatalotofplants,about20kgeveryday.Likecattle,theyhavetoruminate.Thisspeciesiswidelydistributed,mainlyinthenorthofEurasiaandNorthAmerica.Itisnotclosetothecriticalvalueofvulnerableandendangeredspecies,thepopulationtrendisstable,andEuropeanandAmericancountrieshaveformulatedrelevantlawstoprotectit,soitisevaluatedasaspecieswithoutsurvivalcrisis.Unfortunately,inpartsofCanada,moose'ssurvivalisthreatened.Duetodisease,predatorsandclimatechange,itisdifficultformoosetosurviveinthefirstyear,andthenumberofmooseisgraduallydecreasing.Fortunately,althoughapartofmoosearekilledundergunsoronhighwayseveryyear