Did dinosaurs lay eggs?

1. 1

   Tiny says

   Scientists have dug up dinosaur eggs that turned to stone. Inside one, they found a tiny baby dinosaur, curled up tight with its head tucked under its body. Baby birds curl up just like that inside their eggs. So yes, dinosaurs laid eggs!

   For ages 4–7
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   Checked against Rare dinosaur embryo shows bird-like posture (University of Edinburgh)

2. 2

   Why didn't giant dinosaurs sit on their eggs?

   A giant titanosaur was far too heavy to sit on a nest. So it laid lots of smallish eggs, about thirty or forty at a time, in warm ground or sand. The warm earth kept the eggs cosy until the babies hatched.

   For ages 6–9
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   Checked against The first known dinosaur egg? A new discovery from the collections we care for (Natural History Museum)

3. 3

   Did any dinosaurs sit on their eggs like birds?

   Scientists found a fossil of a dinosaur called Citipati sitting right on top of its nest of eggs. Birds sit on their eggs like that to keep them warm. It looks like Citipati was doing the very same thing.

   For ages 8–11
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   Checked against Were dinosaurs good parents? (Natural History Museum)

In Lil' Phil, reaching the bottom of this wonder earns a sticker for Tiny's collection.

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  Are birds dinosaurs?

  Ages 4–11Tiny
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  How big were the biggest dinosaurs?

  Ages 4–11Tiny