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RE: Tree of Life: The Controversy of the Egg & the Arrival of Mammals

in #steemstem • 8 years ago

Though human don't lay eggs but human is a product of fussion of ovum(egg )and spermatozoa. So human give birth alive, at least we are not ovoviviparous. Well done @mobbs

8 years ago in #steemstem by
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