The Cyclostomata is an ancient group of aquatic colonial suspension-feeders from the phylum Bryozoa. The fact that they have unique placentae has been discovered by researchers at St Petersburg ...
In any placental mammal a finely tuned immune system protects its body against invasion. Detection of foreign proteins triggers rejection. Yet half the genes of a fetus in the mother’s womb stem from ...
In any placental mammal a finely tuned immune system protects its body against invasion. Detection of foreign proteins triggers rejection. Yet half the genes of a fetus in the mother’s womb stem from ...
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