Add Yahoo as a preferred source to see more of our stories on Google. Scientists excavate dinosaur egg nests in Mongolia's Eastern Gobi Basin. National Geographic Explorer Lindsay Zanno and her team ...
Dinosaur Discovery on MSN
Prehistoric sharks revealed – a complete timeline through deep time
This video presents a complete timeline of prehistoric sharks, tracing their origins back more than 400 million years. Viewers see how early, primitive species evolved into some of the most efficient ...
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