Mentioned by Chicago Parent
38 Chicagoland Museums Families Should Visit At Least Once
"$39.95, $29.95 ages 3-11, special rates for Chicago residents, free members; timed ticket or registration required. Kids can touch aquatic animals or see them up close at one of the daily presentations. Exhibits include fish, sharks, penguins, dolphins, sea lions and other water animals in their regular habitats, showing life in rivers, streams and different ocean environments."