Neither did we, really, until we caught this awesome "Tyrannosaurus Sex" (get it?) special on the Discovery Channel. Now we have all the information we could ever need on dinosaur genitals and exactly how the giant beasts copulated without, you know, breaking each other.

Keep reading for a clip on titanosaur mating, and check out the link at the bottom for more videos and information (including the fact that a titanosaur's penis could have been up to 12 feet long).

Thank you, Discovery Channel, for making us all better people.

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