Are Ebola survivors immune for life?

Growing a stomach, surviving Ebola and homosexual dolphins...
31 October 2014
Presented by Chris Smith, Redi Tlhabi

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Bottlenose dolphins

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Can a new stomach be grown in a dish? Are Ebola survivors immune from future infection? Why do injuries seem to hurt more later? Are there homosexual dolphins? How do muscles make energy? How do ants home in on food? Can dogs judge human character?

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