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Amphibians - What is an amphibian? | Young People's Trust For the Environment
All About Amphibians | Burke Museum
Why Do Amphibians Have Thin & Moist Skin? | Animals.mom.com
How to tell the difference between frogs and toads | BBC Wildlife - Discover Wildlife
Amphibians are cold-blooded animals with moist skin and no scales
Difference between Frog and Toad | Frog vs Toad
Intro to Anatomy 7: The Integumentary System - Freethought Forum
Amphibians | Saint Louis Zoo
Frog Skin: Everything There is to Know | Toads N' Frogs
Animals That Breathe Through the Skin
All About Frogs | Burke Museum
Frogs and Toads | Different Types of Frogs | DK Find Out
Can you tell the difference between a toad and a frog? Many people don't know the difference! Frogs have smooth, moist skin, long stripy le… | Frog, Toad, Habitats
Is it okay to touch a frog, or will we burn its skin? Readers' nature queries
Frogs and Toads ( Read ) | Biology | CK-12 Foundation