The Crucifix and the Stone — The Cicatrix and the Stone — Part Three
Placental mammals are those that have live birth and nourish their embryos throughout gestation via a specialized organ—the placenta—attached to the wall of the mother’s uterus. More than 5000 species exist today, from the 1.5-gram bumblebee bat to the 190-tonne blue whale, from the mole to the elephant, from the horse to the human. This […]
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