London Zoo: What’s up with giraffe necks?

http://azdailysun.com/lifestyles/pets/london-zoo-what-s-up-with-giraffe-necks/article_df82a0e6-24d0-51a1-ba08-0595c2d7be59.html

The giraffe neck is comparable to the peacock's tail in that it promotes more mating success while also exposing the males to dangers and physical challenges.

---Steve