Teaching Evolution

A blog devoted to teaching evolution, both in our schools and in our communities.

Thursday, July 28, 2005

Scientists Find Oldest Dinosaur Embryo Ever

A 190 million-year-old embryo has been discovered among fossils excavated in South Africa in 1978. The horizontal neck, heavy head, and limb proportions indicate that the young were quadrupeds who then matured into bipeds. The article says that's a pattern of development almost unheard of among vertebrates, but isn't that essentially how humans mature?

"The results have major implications for our understanding of how these animals grew and evolved," said Robert Reisz of the University of Toronto, who headed the team of paleontologists.


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