bp's science: difference between frogs and toads (v.1)

We've been explaining lots of cool things to Oliver lately because he has lots of questions.  One of them being, what is the difference between frogs and toads?  I didn't know, so I thought I'd check it out.  The answer was surprising.  Toads are actually frogs, however there are differences, seeing as they are in two different families* (Ranidae and Bufonidae, respectively).

Main differences include: frog skin is wet, toad skin is not; eye shape is different; frogs hop, toads walk.  See here for more differences.

*And just a note taking you back to 7th grade biology, there are seven major categories according to Linnaeus's taxonomy: kingdom, phylum, class, order, family, genus, species.

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