They had to, right, to keep repopulating the Earth. In case you've ever wondered, here's everything you wanted to know about dinosaur sex, but were afraid to ask.
*Content suitable for those 65 million years old and over.
More information about formatting options
Connect with Science Buzz on Facebook and Twitter.You can also subscribe to our RSS feed using any newsreader software.
Science Buzz is supported by the National Science Foundation.
Copyright © Science Museum of Minnesota, 2004-2013, except where noted.