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Ancient ‘terror birds’ were giant apex predators. Suspected new species is among the largest ever known
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Millions of years ...
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An Ancient Bird Was Found Fossilized with its Egg Inside, Hints at Possible Death Due to Unborn Infant
This was the strongest evidence known of ancient birds producing this tissue during reproduction. The outermost layer of the ...
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Ancient bird skull found in Antarctica could be oldest known modern bird
Unlike findings in Madagascar and Argentina, where ancient birds had teeth and long tails, it seems Antarctica had a unique development path for birds.