Fossils, research. They have reproductive organs in the bones. No one really knows for sure.
Yes, Carnotaurus, like all dinosaurs, laid eggs. Fossil evidence suggests that it reproduced through oviparity, meaning it laid eggs in nests. While no specific Carnotaurus eggs have been discovered, related theropod dinosaurs are known to have laid eggs, supporting this reproductive method.
yes All true dinosaurs were reptiles and laid eggs.
yes she did she got herself pregnant and when she went into the vines she laid eggs possibly more than 7
Dinosaurs were never born. They hatched from eggs laid in nests. Their fossils are found on every continent of the world.
The same way that reptiles do today - they laid eggs. We do not know (and probably will never know) whether dinosaurs cared for their young, like birds, or just left the eggs to hatch and took no further interest in them.
Pretty much all dinosaurs lay eggs, so Spinosaurus likely did too.
The egg. Dinosaurs laid eggs long, long before chickens existed.
They had long tails, scales, and laid eggs
Ankylosaurs were dinosaurs, and, like all dinosaurs, they would have laid eggs. Like other dinosaurs, their eggs would have had a hard shell made of calcium, like that of a bird, and not a soft, leathery shell like a turtle, snake, lizard, or crocodile egg.
They mated like modern birds and some reptiles. Dinosaurs laid eggs, which had leathery eggshells. Some species of dinosaurs nursed their babies after hatching, some species let them hang out to dry after laying eggs.
We do not know and we cannot tell due to the simple fact that nobody was around at the time of the dinosaurs. It is probably most likely that they laid 2 eggs per mating season.
Dinosaurs are pretty much the early age lizards, they laid eggs, which would eventually hatch and thus, a dinosaur is not actually born but hatched.