People are special creations, not just different animals. God created people to be his friends and to take care of the world. Unlike animals, human beings can talk to each other and to God. People are the only part of God's marvelous creation that can be friends with God. And he created them perfect - that's why Adam and Eve were not ashamed of their nakedness. But people are also the only ones who can sin.
Then God said, "Let us make a man - someone like ourselves. He will be the master of all life upon the earth and in the skies and in the seas." So God made man like his Maker. Like God did God make man. Man and maid did he make them. (Genesis 1:26-27)
Genesis 2:4-7; Psalm 8:4-5; 139:13-18