Adult blue tang fish swimming in captivity at the UF/IFAS Tropical Aquaculture Lab. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

Father is aided in his quest by Dory (top), a blue tang fish with no short-term memory. Marlin (right), a clownfish, travels to Sydney to find his son after the two are separated. Father is aided ...