Porcupine or Hedgehog You see an animal with spikes on its back Is it a porcupine Or is it a hedgehog These animals look alike but they are not the same Many people have trouble telling porcupines and hedgehogs apart but it is easy if you know what to look for Even though they are the same in some ways in other ways they are very different Let’s find out more about these spiky animals 4
Spiky Mammals Both porcupines and hedgehogs are part of an animal group called mammals Mammals have a backbone and are covered with hair or fur Most mammals give birth to live babies Baby mammals cannot take care of themselves Instead their mothers protect them Female mammals also nurse their babies with milk from their bodies All mammals are warm-blooded Mammals can control their body temperature Their bodies stay the same temperature no matter what the temperature is around them This is different from cold-blooded animals like reptiles and amphibians 6
