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Fossils, research. They have reproductive organs in the bones. No one really knows for sure.
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∙ 15y ago
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Did all dinosuars lay eggs?
yes All true dinosaurs were reptiles and laid eggs.
Did allosaurus have eggs?
yes she did she got herself pregnant and when she went into the vines she laid eggs possibly more than 7
Where were dinosaurs born?
Dinosaurs were never born. They hatched from eggs laid in nests. Their fossils are found on every continent of the world.
yo what came first the chicken or the egg?
The egg. Dinosaurs laid eggs long, long before chickens existed.
Who born first hen or egg and why?
The egg came first. The first chicken would have evolved from a different species through a series of genetic mutations, leading to the emergence of the first chicken egg, which contained the genetic code for the first true chicken.
How are triceratops born?
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.
Did a spinosaurus lay eggs or were they live birth bearers?
Pretty much all dinosaurs lay eggs, so Spinosaurus likely did too.
Which characteristics did many dinosaurs share with todays lizards?
They had long tails, scales, and laid eggs
Do ankylosaurs lay 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.
How did dinosaurs make babies?
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.
How were dinosaurs born?
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.
How many eggs does a t Rex have per year?
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.
