Armadillos have shells to protect them from the sun and from other animals, an armadillo shell is made from the same material as a rock. Having a harder shell protects an armadillo more then a armadillo with a softer shell.
Explain more about how this relates to natural selection / survival of the fittest - I saw you searching images etc - include some in your blog post. You can do more with this question!
Explain more about how this relates to natural selection / survival of the fittest - I saw you searching images etc - include some in your blog post. You can do more with this question!
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