Just two weeks after the release of the emperor penguin nicknamed Happy Feet was released in the Southern Ocean to return to Antarctica on its own, the transmitter connection has been lost. The connection loss is very likely due to the transmitter falling off. They had thought it would allow them to track the penguin for four to six months, but it has fallen far short of that expectation. However, it is not too surprising as the transmitter was only glued on in order to try not to be too invasive. It was only expected to stay on until molting season.