Illustration courtesy Vladimir Bondar and GEAL/CCID/Museu da Lourinhã

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A megalosaurid theropod overlooking its nest.

Illustration courtesy Vladimir Bondar and GEAL/CCID/Museu da Lourinhã

Dinosaur Eggs Are Missing Link In Egg Evolution

Recently discovered dinosaur eggs are helping researchers fill in missing gaps in the evolution of eggs.

Image of the 125 Anniversary logo Studying dinosaur eggs is a lot like a big, frustrating Easter egg hunt: The eggs are rare, fragile—rainwater is acidic enough to dissolve some egg fossils—and it can be difficult to identify which dinosaur species they belong to.