From MSNBC News:
The oldest fossilized dinosaur embryos ever found reveal how the creatures grew from tiny hatchlings to become such giant land beasts. The embryos, including one that was ready to hatch before being frozen in time, had no teeth. That is further evidence that at least some dinosaurs must have tended their young, scientists said Thursday. The embryos are 190 million years old, dating from the beginning of the Jurassic Period.
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