Depending on what corners of the internet you frequent, you may have heard about the horrific corkscrew penises ducks use to solicit often nonconsensual sex. If you've never stopped to wonder about ...

Most birds lack genitalia, but male ducks are known for their long, spiraling penises, which have evolved through an ongoing cat-and-mouse game with females. A new study from The Auk: Ornithological ...

Add Yahoo as a preferred source to see more of our stories on Google. Cute loving couple of colorful ducks. Mandarin duck Aix galericulata female and male. Loving birds, animal love. Smooth background ...