On the day I received the ZWB1 filter for my Tank 007 TK-566 UV torch I found two half dead dragonflies in the road on my way to work. On casual inspection they looked intact, would flap their wings when stimulated, but without trying to get away. I often see dead dragonflies and juvenile dead (flat) squirrels at this location. I had a little bouquet of flowers set up in the lab for something for them to hold on to. They remained still for long periods except when initially stimulated by the UV