A smattering of fossils have indicated what happened after mating, offering insights into the internal workings of egg-laying dinosaurs. While female birds have only one oviduct—thought to be an ...

American paleontologist Riley Black says dinosaurs probably had penises and mated in a similar way to today's mammals, with the male mounting the female. However, dinosaur species that had large ...

“I think, frankly, that for a human-sized animal it’d be much ... Like modern birds, female dinosaurs stored the extra bone for a supply of calcium to build eggshells.