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How mice survive infection by virulent Toxoplasma parasites

Posted October 29, 2013

One of the commonest parasites in the world is Toxoplasma gondii. Toxoplasma can infect most warm-blooded animals, including humans, and causes significant damage to the unborn child if a woman becomes infected for the first time during pregnancy. The natural cycle of the organism depends on cats and on mice. Infection by Toxoplasma normally doesn't kill the animal, but there are some "virulent" strains that kill mice only a few days after infection.

‘Lost world’ discovered on Australia’s Cape York Peninsula

Posted October 28, 2013

An expedition to Cape York Peninsula in north-east Australia has found three vertebrate species new to science and isolated for millions of years -- a bizarre looking leaf-tail gecko, a golden-colored skink and a boulder-dwelling frog.