Giant animals

07 November 2013
Presented by Matt Burnett, Simon Bishop.

This week archaeologists in Queensland, Australia, found part of a fossil from an ancient platypus that was a metre-long. Archaeologists have already found the remains of many giant ancestors of modern creatures, so here's two modern day giant animals - Simon Bishop and Matt Burnett - with this week's Quick Fire Science looking at why animals grew so big in the past.

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