Question

Why is a frog's back darker than its stomach?

Answer 1

A golden poison frog (Phyllobates terribilis) (Credit: Dirk Ercken/Alamy) ...

Anthony's poison arrow frog (Epipedobates anthonyi) (Credit: blickwinkel/Alamy) ...

A strawberry poison dart frog (Oophaga pumilio) (Credit: Visuals Unlimited/NPL) ...

A marbled poison frog (Epipedobates boulengeri) (Credit: Bert Willaert/NPL)

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Answer 2

A golden poison frog (Phyllobates terribilis) (Credit: Dirk Ercken/Alamy) ...

Anthony's poison arrow frog (Epipedobates anthonyi) (Credit: blickwinkel/Alamy) ...

A strawberry poison dart frog (Oophaga pumilio) (Credit: Visuals Unlimited/NPL) ...



Anthony's poison arrow frog (Epipedobates anthonyi) (Credit: blickwinkel/Alamy) ...

A strawberry poison dart frog (Oophaga pumilio) (Credit: Visuals Unlimited/NPL) ...

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