When my son was little we went to a lake near our house. There was a small puddle with tadpole in it, but the puddle was quickly drying up in the hot sun.
My son and I decided to rescue the little tadpoles and put them into the lake so that they could live.
As soon as we put them into the lake, they were quickly gobbled up by the fish in the lake.
What a life lesson we had that day.