
Egg Hatching
A large egg cracking open with a baby dinosaur peeking out of the top, sitting in a twig nest.
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3 printable sheets · 3-9
Fossil dinosaur eggs have turned up on every continent, sometimes still arranged in the neat rings the parent laid them in.
These pages cover a nest full of eggs, an egg cracking open and a newly hatched baby beside its shell.
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One PDF containing all 3 sheets, ready for US Letter or A4.
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A large egg cracking open with a baby dinosaur peeking out of the top, sitting in a twig nest.
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A round twig nest holding five patterned eggs, surrounded by ferns — lots of fine detail.
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Fossil dinosaur eggs have been found on every continent. They come in different shapes and sizes, from roughly tennis-ball size up to about the length of a forearm, and their shells carry tiny pores that let air reach the growing animal inside.
Some fossil nests preserve eggs arranged in neat rings or rows, which tells us the parent placed them carefully rather than dropping them. Nesting sites with many nests close together have been found, suggesting some dinosaurs nested in groups.
A small number of fossil eggs contain the bones of the unhatched animal. These rare embryo fossils are one of the few ways scientists can match an egg to the kind of dinosaur that laid it.

A newly hatched baby dinosaur standing beside its broken eggshell, with very thick outlines.
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