Duck Dick.

In my neverending pursuit to discover the wonders of nature, I offer you, faithful superbeast readers, the explosive eversion of a duck penis. Shot in slow motion of course.

This hefty duck dong comes in at 20 cm. Nearly 8 inches. This is the John Holmes of bird boners.

This is NSFW. Or is it? Do people get offended by duck porn? IT'S SCIENCE!

Thanks Hilldawg, and Gawker for this informative find.