Before we start, it’s important to know the difference between the hedgehog and another prickly creature, the porcupine. “If you have seen both a porcupine and a hedgehog you will never mix ...

What they’re not Hedgehogs, porcupines, and the Australian echidna have one thing in common – they all have quills. However, they are not really related. They are an example of a kind of ...