called a hind, doe or cow and a baby deer is called a fawn.
something disappears when it suddenly changes from you being able to see it to not being able to see it. the man in the picture has disappeared and only left his clothes behind. a similar word to disappear is vanish. the opposite of disappear is appear.
you have one ear on either side of your head. you use your ears to hear with. you have two ears shaped the way they are so that you can tell which direction sound is coming from. 