Because Valentine's Day is about necking, red roses, and Whitman's Samplers -- and not about making that special someone your creampie cutie for the night, you perverts -- the San Francisco Zoo's annual adult-only "Zoo Sex Tour" has changed its name to “Woo at the Zoo.” Why? No idea. But the zoo tells us:

Contrary to common belief, the animals will not “mate on cue” during the Zoo’s adults-only affair (21 years and older), but one will learn the many facets to the birds and the bees of the animal kingdom. Woo at the Zoo, formerly known as the Zoo’s Sex Tour, will entertain and educate guests through a multimedia presentation and up-close encounters with various creatures inside the Zoo’s Osher Great Hall. Led by former Zoo penguin keeper and animal-care professional, Jane Tollini, the 2008 dates for Woo at the Zoo are February 9, 13, Valentine’s Day (Feb. 14) and 15 at 6 p.m. and February 10 and 17 at noon for a special Sunday brunch presentation.

For more info, visit the zoo's site. And look at that: not one tiger attack reference. (Well, except for that one.)