No risk, no fun...so they say. Several researchers here at the institute are doing experiments in which they erect fish enclosures in the Groesser Ploener See, the large lake in Ploen. Basically, they raise the fish in the lab, then stick them in these enclosures in the lake to see which parasites they get and how well the reproduce. While erecting the enclosures for this year's experiments, they came across a WWII-era bomb (see pic). Apparently, towards the end of the war, a whole heap of ammunition was dumped in the lake, and bombs and other explosive knick-knacks periodically wash into the shallows. The chances of this bomb exploding were very slim. It had been underwater for over 60 years. Nonetheless, bombs in the lake do add a tad bit more excitement to experiments in fish evolutionary biology.