August 13, 2011

Pregnant Fossil Proves Live Birth for Sea Reptile

Arianna K. -- Scientist recently discovered the fossils of a huge fetus within the remains of a 78-million-year-old plesiosaur. The fossil shows that the plesiosaur had given birth to a single live baby. The female plesiosaur is 15.4 feet long. Plesiosaurs were the top predators during the time dinosaurs walked the earth. This is the first fossil where scientists can clearly tell what the gender is. The article shows that even millions of years ago organisms gave birth to live offspring. Show that life was good for the plesiosaurs.

I find the article interesting that dinosaurs could give birth to live offspring. I believed that all dinosaurs laid eggs. If organisms can give live birth 78-milliom-years ago with organisms still be able to thousands of years later form today. This helps us better understand our former earthlings. This information could help scientist understand dinosaurs in a better way. I wonder what other kinds of dinosaurs have live offspring. This shows that it maybe necessary for large aquatic organisms to have large offspring instead of laying eggs.



Link:  Pregnant Fossil Proves Live Birth for Sea Reptile

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