Where's the best place to meet a mate? For theropod dinosaurs around 100 million years ago, the answer was probably a lek. A lek, or a lekking site, is a special area where the members of a species, ...

Roughly 100 million years ago, amorous male dinosaurs congregated in what is now Colorado to strut their stuff in hopes of impressing potential mates. That’s the scene paleontologists now say played ...