there is a new discovery right here in colorado about the ancient creatures inment professor martin lockley found evidence of fossilized love nests. dinosaurs engaged in mating behaviors there and their behavior was similar to modern bird. researchers found them on the western slope near delta and then here along dinosaur ridge in the front range. they are 100 million years old, these fossils are, and they show scrape ceremonies. that's when males would show off their acts to win over the female dinosaurs. >> we are doing bird research. call it pseudonest building. so dinosaurs, when they are getting ready to mate, will scratch the surface like i know how to make a nest. they will do it many, many, many times before they finally settle down on the nest. >> um-hmm. >> okay. >> 9news reporter myra rodriguez is working on this story today. she is going to have more on what this discovery means for the understanding of all prehis to prehistoric history. >> i don't know if i want to i'll watch anyway so i can answer the question for my kids. >> talk about the scratching. >> right? >> okay. >>> l