Leopards of the Night
You chose answer 5.
If it had been a truly pitch-black night, the blood dripping down the Puku's neck in Emmy's footage could not have looked "bright red."
Correct! The only way to film in pitch darkness is to "illuminate" the subject with infrared waves, which lie just beyond the visible
spectrum, and record the images with a special infrared-sensative camera. But the infrared images can be shown only in shades of gray, not in
color. So footage shot by infrared-sensative cameras is always black and white. Thus, Emmy's footage could not, as she claimed, have been shot
on a moonless, pitch-black night.
Test your sleuthing skills with the next NOVA Challenge!