Friday, June 1, 2012

'Egg-streme' facts

Why were there tiny spores on dinosaur eggs? 

All eggs have tiny respiratory pores on them, which allow oxygen, carbon dioxide and water to pass through. However, pores on dinosaur eggs were 15 times larger than birds as the carbon dioxide level of the prehistoric era was twice as high as that of the modern era. The eggs required bigger pores to allow them to obtain more oxygen.

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