The Mother Fish

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Presenter: John Long

Published: November 2009

Age: All ages

Views: 1453 views


Type: Lectures

Source/institution: Nature Video

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Evidence of reproduction by internal fertilization has been discovered in a large group of ancient jawed fish. Embryos discovered within fossils of these animals confirm that live birth in prehistoric times was much more widespread than previously thought. Watch the researchers talk about the fossils and techniques used to find them.

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