Why do bats dangle upside down?

15 April 2011
Presented by Chris Smith, Redi Tlhabi.

This week, modelling schizophrenia in a dish, why bats roost inverted, what remains in the ground after oil has been removed, why planets form on a horizontal plane, why we get goosepimples, near-death experiences, the cause of cold urticaria and why an ice-cube is white in the middle.

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