Infected animals given chloroquine while pregnant had fetuses with a far lighter viral load in their brains than untreated mice did.
Were animals with four limbs the first to evolve fingers and toes-- or did such digits evolve long before? A linkurl:study published today;http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature07339.html (September 21) in Nature claims to resolve this long-standing question. For many years, most paleontologists debated whether digits arose 380 million years ago as a novel evolutionary trait in tetrapods, or four-footed creatures. The new study, led by Catherine Boisvert, at Uppsala Unive
September 21, 2008|
September 22, 2008