Singapore and Their RFID Fish
The Underwater World aquarium in Singapore has recently unveiled a system by which you can identify fish in the aquarium tanks with RFID technology. The minute tags embedded under the skin (or scales) of the fish will allow visitors to more easily identify the various species swimming around without having to search around for 15 minutes looking for a specific fish of interest. The system consists of a sensor somewhere in the tank and a touchscreen monitor on the outside. Each time a tagged fish swims past the sensor, information about it is displayed on the monitor.
via RFID Weblog