The snake is a very surprised animal . It sleeps with its eyes open , it feel with its tongue .The snake can move very quick , a snake exuviates （蜕皮）many times each year . It slides (滑动） out its old skin as if it were a worn coat . Here is the more surprising thing of all , a snake swallows (吞）things all in one piece, it can swallowed animals big than itself . Small snakes can swallow bird’s eggs without breaking it . Snakes eat mouse ,they can be a big help around farm . Farmers like the kinds of snakes that eats mice .