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Dinosaurs laid colourful blue-green eggs!

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AdminAllosaurusMay-23-2015 10:12 AM

First evidence that dinosaurs laid colourful blue-green eggs.

"The American robin lent its name to a striking shade of blue, but the vivid hue may have been colouring eggs long before the bird evolved – perhaps long before any birds evolved. It may have appeared in the dinosaur ancestors of birds that lived 150 million years ago.

Although recent studies have revealed the colours of dinosaur feathers, skin and scales, we had known nothing about the original colour of their eggs.

Ornithologists once assumed early birds, and the dinosaurs they evolved from, laid white eggs. But we know that some of the most ancient groups of birds still around – including the tinamou and emu – actually lay coloured eggs, points out Mark Hauber, an animal behaviourist at Hunter College in New York.

His group has discovered the chemical origin of the avocado-green from emu's eggs, as well as the blue of robin's eggs, the brown of chicken's eggs and the pinks and purples from the eggs of other birds belonging to ancient living groups. The colours come from the way that two pigments in the shell – biliverdin and protoporphyrin – blend with each other and with the calcium carbonate that makes most of the shell."

Check out the rest of the article: First evidence that dinosaurs laid colourful blue-green eggs


Used to be raptor egg blue <i>(Image: Tzu-Ruei Yang, University Bonn)</i>



6 Replies


MemberCompsognathusMay-23-2015 11:18 AM

thats amazing. we can see which dinosaur laid each egg by its color. astounding

Something Real

MemberTyrannosaurus RexMay-23-2015 1:20 PM

SVANYA - That is incredible! Hmm...I wonder if there were other variances in color...How very neat! Thank you so very much for taking the time to share this with us! :)

Sci-Fi King25

MemberAllosaurusMay-23-2015 3:01 PM

Yaaaaaaaaaaaaay every dinosaur nest I've ever colored is now innacrate.


Nice find! :)

“Banana oil.”- George Takei, Gigantis: The Fire Monster

Something Real

MemberTyrannosaurus RexMay-23-2015 11:58 PM

SCI-FI KING25 - Oh, it is alright! I am sure your drawings are still beautiful! :)


Community ExecutiveMemberCompsognathusMay-24-2015 8:30 AM

The world will spin well past our last breath, but I will always care about you


MemberAllosaurusMay-25-2015 3:35 AM

Fantastic and they are beautiful!

Thanks Svanya, that's awesome :)


"Let The Cosmic Incubation Begin" ~ H.R. Giger

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