giza | Yesterday I watched Galapagos tortoises fuck!

Here are some highlights from the article, and yesterday:

"The female kangaroo has three vaginas," [...] "She'll be using two for reproduction and having fun with the third. She is often called 'the slut of the animal kingdom.' "
At two inches, gorillas are not quite so well-endowed as you would think.
Male snakes have two penises. There have been cases where they've used them on different females at the same time.
A female frog, for example, will summon up to 25 males who tap their feet in a sort of slimy "line dance" to get her attention.
Male tortoises, often depicted as shy creatures, are in fact extremely aggressive, biting females about the head and neck in the amorous effort.
[...] female kangaroos, whose promiscuous lifestyle caused such a stir, come equipped with an incredible method of birth control: If they already have a joey in the pouch, a kangaroo's body can freeze the development of newly fertilized eggs at 100 cells until the pouch is free.
Pigs have penises that are shaped like screws. This is where the term "screwing" comes from.
"But it was the elephants that left the most lasting impression for some. Weighing 20,000 pounds makes intimacy a dangerous proposition, and at times a male elephant will have all four feet off the ground."

Giza aka Douglas Muth's LiveJournal