Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishand...
问题详情: Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmoreeasily,butothersmovetogetawa...