What causes anencephaly?

20 July 2012
Presented by Chris Smith, Redi Tlhabi.

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This week, what causes anencephaly and exencephaly? Can electric cars recharge themselves from their wheels? How do astronomers determine the composition of exoplanets? Why do things move when I switch eyes while looking at them? Why do animals of the same species all look identical? Can we get dinosaur DNA out of amber? Do hands and feet get fat when a person puts on weight? Join Dr Chris for the latest round up of top questions from Talk Radio 702, South Africa.

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