One the way out of the exhibit I was able to get a shot of these butterflies in flight.

Image information:
Camera:NIKON D70  Date:Saturday August 14,2004 11:31 AM
Shutter speed: 1/60  F-stop: 8.0  Focal length: 75.0mm (35mm equivalent: 112.0mm)  
Metering mode: Multi-segment  

Post processing: Cropping, minor sharpening and levels