If you're looking for anime similar to Shimajirou to Kujira no Uta, you might like these titles.
Mock and his sister, Sweet, are curious about the fuss on the earth and eventually decide to come out of the ground. They save the poor, the innocent and the brave whenever and wherever these people need help.
Young beaver Chuck's adventure with his little friends. When thy are in trouble, Chuck often asks his father to help them out.
The story of the happy, brave and peace-loving moles defeating evils and protecting their home continues. This time they have to protect the secret treasure of the mysterious sirens. They venture onto the ocean to stop the evil magician Kula from destroying all children's dreams.