Mother/embryo relationship: Mammals not the only animals to feed embryo during gestation

30 abril 2015

For over a century, the scientific understanding of matrotrophy of an embryo developing inside a mom’s body has come from vertebrates. This process was thought to be infrequent among the other 33 or so major groups or phyla of animals. But a new major study reports that matrotrophy has evolved in at least 21 of 34 animal phyla.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RlHU6ycAKSs/150430135001.htm

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