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image: Researchers Cryopreserve Coral Sperm

Researchers Cryopreserve Coral Sperm

By Catherine Offord | February 1, 2018

A project aims to preserve samples of the climate change–vulnerable animals for future restoration.

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A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.

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image: From Stem Cell to Oocyte In a Dish

From Stem Cell to Oocyte In a Dish

By Anna Azvolinsky | October 17, 2016

For the first time, scientists generate functional mouse eggs from stem cells in culture.

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image: Sperm From Ovaries

Sperm From Ovaries

By Anna Azvolinsky | June 11, 2015

With the deletion of a single gene, female Japanese rice fish can produce sperm. 

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image: Erasing Mitochondrial Mutations

Erasing Mitochondrial Mutations

By Jenny Rood | April 23, 2015

Researchers develop a method to selectively remove mutated mitochondrial DNA from the murine germline and single-celled mouse embryos.

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image: Mouse Eggs Made with Stem Cells

Mouse Eggs Made with Stem Cells

By Dan Cossins | October 4, 2012

Researchers claim to have successfully transformed stem cells into viable mouse oocytes that produced healthy, fertile pups.

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image: Lab-Grown Sperm

Lab-Grown Sperm

By Cristina Luiggi | August 4, 2011

Healthy mice are born from germ cell precursors grown in vitro.

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