Lines & Matter · Field guide
Frogs
A frog’s skin is part of its breathing system: oxygen can pass through its thin, moist surface. That close contact with the surrounding world makes skin more than a covering—it is a living connection to the habitat.
A question to exploreHow does a frog’s habitat help keep its skin moist?
Read more: American Museum of Natural History ↗
For learning and art, not identification or safety advice. Guide use & limitations
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About poison, venom & responsible observation
Poisonous organisms can cause harm when toxins are swallowed or absorbed. Venomous organisms deliver toxins through a bite, sting, or other wound. A species can be both. An absent annotation never means safe to handle or eat.
Read the Natural History Museum explanation ↗