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Impregni-ball
The pangolin is a specialist termite-eater that lives in Africa.
It has developed a flexible armour of scales and can curl itself up into a ball, making it virtually impregnable.
Its muscular tail also acts as a counterbalance so it can walk with most of its weight on its back legs and use its front legs for digging into termite mounds.
In fact, it is so confident of its defences that it ignores any other creatures that might be around unless they actually attack it.
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