PrimeWire

You can now watch the entire National Geographic: Naked Science - Whats Sexy movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

What turns you on? The mating ritual is as old as humankind itself, and scientists are putting the chemistry of love and lust under the microscope.