Dinosaurs created other dinosaurs. The length of their existence makes that apparent more than enough. But how did dinosaurs go about courting and mating with each other?

No one particular has uncovered two dinosaurs lovingly intertwined just nonetheless. Nor has any person uncovered dinosaur tracks or traces that file the act. But the fossil file has presented the bookends to these critical moments.

Even although we cannot see non-avian dinosaurs in the flesh, trace fossils uncovered in Colorado and elsewhere file at least one particular species’ courtship ritual. Scratch marks in the floor — not unlike individuals created by some modern floor-dwelling birds — give us a clue that some dinosaurs almost certainly showed off to prospective mates.

And all dinosaurs laid eggs. No one particular has uncovered proof of dinosaurs supplying live delivery — and, just like some birds these days, dinosaurs laid clutches of various eggs. Regardless of whether we at any time fill in the middle second of this sequence is up for the fossil file to come to a decision.

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